Thursday, December 29, 2011
Everett Gaskins Hancock
Lemons, Limes & Cumquats
It is the lemons, limes and cumquats that are most often grown. Lemons are the most popular citrus that is grown in home gardens from the tropical regions to cold areas. The Lisbon Lemon Citrus limon ‘Lisbon’ is a favourite cultivar in a Mediterranean climate for alkaline soils. They are mostly grafted onto the rootstock of a rough lemon, and will give three crops a year, with only a short gap in January/February where the tree won’t have any lemons at all. The blossoms have a very strong fragrance and will frequently be flowering and fruiting at the same time. This variety can’t always be grown in all areas. Meyer Lemon Citrus Limon ‘Meyer’ is easier to grow in the cooler regions and Eureka Lemon Citrus Limon ‘Eureka’ is a better variety for humid areas. Good drainage is essential no matter what region a lemon is grown. Growing them in a raised bed or on a slope can improve an otherwise poorly drained area. After 10 or 15 year the tree may be too high to pick the fruit comfortably, so it is a good practice to keep them pruned to a height where the top of the tree is easy to reach. A Variegated Lisbon Lemon has ornamental foliage and smaller fruit that is not quite as prolific.
The Caffre Lime Citrus hystrix has become the most popular lime in Australia over the last couple of years. It is grown exclusively for the leaf, which is used as flavouring in Thai cooking. The fruits are extremely sour and not edible, but the plant makes an excellent container plant. They are very easy to grow if they are kept trimmed and are fed twice a year in spring and summer with a slow-release fertiliser. The West Indian Lime Citrus aurantifolia is smaller than the Tahitian Lime. It has a fruit with seeds but it has the best lime flavour and is widely grown and consumed in the tropics, whereas the Tahitian lime has smaller, thin-skinned seedless, very juicy fruit. The West Indian Lime is grown here at the edge of its geographical tolerance, so it is grown on a compatible rootstock, which is rough lemon. The Rangpur Lime Citrus x limonia has a large juicy fruit, almost orange with green seeds. This fruit has an interesting aftertaste.
Nagami Cumquat Fortunella margarita can be eaten whole, including the skin, unlike the Calamondin Citrus madurensis, which is incredibly sour and not one that can be eaten fresh. Chinotto Citrus myrtifolia is one of the most ornamental species that has pendulous branches with very glossy leaves, with fruit that turns bright orange when ripe, but also with fruit too sour to be eaten fresh. These are all best grown in a warm protected area. For a colder climate the Limequat Citrus aurantifolia x Fortunella margarita is an ideal hybrid with delicious fruit.
All of these varieties can be grown in containers, but should be given adequate amounts of fertiliser and they will provide tasty fruit as well as being a beautiful decorative feature.
Tuesday, December 13, 2011
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Seeds vs Seedlings
Seeds vary in size from large ones like avocado and some beans, to the very minute seeds of lettuces and pansies. Small seeds must be placed on the surface of the seed-raising mix because if they are covered too thickly they will not germinate. Other seeds like sweet corn are planted at twice the depth of the thickness of the seed itself, and that is the basic rule to follow with all seeds.
When buying seed-raising mix make sure that it has been especially formulated for the purpose, with not too much air-filled porosity and the correct level of moisture-holding capacity. The surface should be levelled and firmed with a flat piece of wood or similar object, in preparation for sowing.
Seeds can be planted directly in the garden bed, or in seed-raising mix to plant the seedlings in the garden at a later time. If a small amount of Epsom salts is added to water, when applied to the soil the magnesium in it will help the plant to activate the enzymes that breaks down the food supply in the seed. A light misting is adequate. Too much water will rot the seeds. A covering of perlite will absorb moisture as well as provide an insulating layer and aid in germination.
There are several options when planting seeds in the ground. Some seed companies are supplying a length of tape that is impregnated with seed such as radish that is evenly spaced. The tape is laid out in a straight line as a row, and the seeds will germinate at regular intervals.
Many gardeners are also interested in heirloom and heritage seeds. Some are available from nurseries and garden centres supply a variety of these, but to get open pollinated varieties you may need to contact an organic growers group to get home-saved seed, or contact a seed savers network.
If you grow a lot of F1 hybrids, the chances are that the seeds will not be viable, so new seeds will have to be purchased otherwise seedlings can be used. Although seedlings cost a little bit more they save a lot of time. It generally takes 10 to 14 days for seedlings to germinate and come through the ground, and then another 2 to 3 weeks for them to develop some size as young plants. The germination rate of parsley is so poor that it is better to leave it to someone else’s propagating skills. Begonias also have a poor germination rate as well as the seeds being very expensive.
When buying seedlings, you are often confronted with a choice of very small plants or tall, leggy ones. The temptation is to buy the big ones thinking that they will be better, but this is not the case. The small seedlings will easily outgrow the larger ones, as well as being much stronger plants.
When planting seedlings into the garden care must be taken not to crush the stems, as this is the route of transportation of nutrients to the plant. Hold the plants by the leaves and ease them out so that you don’t damage the root system. After planting them in the ground, water them in with a seaweed extract, because the vitamin B1 will help the seedlings overcome transplant shock.
Seeds are cheaper but seedlings are quicker, so it is just a matter of personal choice.
Wednesday, November 30, 2011
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Asian herbs and vegetables
Some Asian vegetables to grow are: Pak Choi and Bok Choi Brassica rapa Chinensis (Chinese White Cabbage), Tatsoi Brassica rapa Chinensis (Chinese Flat Cabbage), Kintsai Apium graveolens (Chinese celery), Mizuna & Mibuna Brassica rapa Japonica (Japanese salad greens, Garlic chives Alllium tuberosum, Coriander Coriandrum sativum, Garland Chrysanthemum Chrysanthemum coronarium var. spatiosum.
Friday, November 18, 2011
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Potting mixtures
You can make your own potting soil. Start with garden soil, add coarse river sand to create a free-draining soil and coca fibre to retain some of the water. These components should be in a ratio of one third of each. This soil won’t go hard and the roots can penetrate it easily.
The soil used for raising seeds is different. Seedling raising mixes are pasteurised to remove all the organisms such as harmful bacteria and fungi. This is different to sterilisation which kills all living organisms in the soil.
Remember when handling potting and seed-raising mixes be careful as it may cause irritations or respiratory problems especially if you have allergies, or are susceptible.
Wednesday, November 09, 2011
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Fruit Tree Planting
Inspect the roots and cut off any damaged ones. Immediately, place the plant in a bucket of water containing a small amount of seaweed concentrate to keep the roots moist and supply the plant with minerals.
You will need a wooden stake to provide the tree with support until it becomes established. Dig a wide hole. This is important because you do not want the roots to be bent. Once dug, take the plant and test the hole for depth and width. Position the plant so that the roots are just below the soil surface. If the hole is too deep fill it in a little.
Once the hole is the correct dimensions, position the tree and tie it loosely to the stake. Then begin backfilling around the roots with a mixture of mushroom compost, soil and peat to hold in the moisture. Make sure that there are no air pockets by gently shaking the stem so that the soil filters down thought the roots. Then fill in the rest and secure the plant to a stake.
After planting you must restore the balance between the shoot system and the root system by pruning the stems so that they are in proportion to the roots. The way you prune will depend on the shape of the tree that you want. If you want the tree to grow into a vase shape, then cut out the main stem and the smaller branches will fan out. Alternatively you can have a christmas tree shape with a dominant stem. To achieve this, prune the lateral shoots back at a bud that is pointing upwards. Next remove all the leaders bar one so that you have a single dominant stem. This leader can be tipped later on when necessary. Lastly, mulch around the tree, keeping it away from the trunk. This will reduce weed growth.
Monday, October 31, 2011
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Hanging gardens
Finding the right basket for the purpose and plants is the first step. There are a multitude of different baskets. The two basic types are wire ones made from galvanised steel or iron and plastic ones with attached drip trays that are excellent for indoors. You can water baskets with drip trays quite a lot without worrying about over-watering, as long as the drip tray isn’t full. They are also useful because they can be watered directly into the drip tray.
The wire ones are relatively cheap and cost costs around $10. These baskets need to be lined in order to hold soil. You can buy liners or make your own out of shade cloth cut to size and pushed into the basket. To remove the folds, make slits in the cloth at intervals. The cloth will then overlap neatly in the basket. Use about 3-4 layers of cloth. Half fill the basket with potting soil and trim any edges of cloth that hang over. Hanging baskets can get very heavy, so it is advisable to hang them up while planting.
Add some cocoapeat or coir to the soil because this acts as a moisture reservoir which is important for plants in pots. Ferns make excellent foliage hanging baskets. Peter chooses a variety of ferns that can all be planted in the same pot and whose foliage complements one another. When planting ensure that the top of the root ball is just below the level of the rim. Place the first plant in the centre of the basket, then gently fill in all the spaces around it with other plants. Peter selects about seven different fern species including a forest brake fern, variegated brake fern, two species of maidenhair, a button fern and two species of pilea, P. mollis and P. nummularifolia (Creeping Charlie) which is excellent for the edges as it weeps over the side. This ability to grow numerous species in the one pot is the great advantage of basket gardening.
Backfill, all the spaces between the plants by hand with moist but not too wet potting soil. It should still be able to flow into the crevices. Push the soil in lightly and finish by watering thoroughly to allow the potting soil to settle down.
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Composting
There are different kinds of compost heaps. The smaller lidded bins are problematic in that they do not reach high temperatures, thus the waste takes a long time to degrade and weed seeds and pests are not killed. However, they are useful for small gardens, produce good compost and are full of worms. When the matter in them has degraded, they can be lifted up and moved, leaving a heap of compost for use in the garden.
If you are in a hurry to obtain compost, use a rotating bin. Organic matter is placed in the bin, the lid is closed and the bin rotated about two or three times a day. The bin has bars inside that mix up the compost and speed decomposition. Once finished, the bin is tipped up and the compost collected in a barrow.
The best way of making compost is to create a couple of wooden frames, one will contain fresh compost and the other old compost that can be used. The compost heap needs to get hot in order to kill weed seeds and pests. The base of the frame should be open to the soil. It should not be concrete because the worms must be able to escape the heat generated by the activity of bacteria that are breaking down the waste.
Begin by making a layer of organic matter, about a third of the depth of the frame. Next add a layer of manure such as sheep droppings, to weigh down the organic matter. This will encourage the bacteria to grow. A second layer of chicken manure is also good. It is essential to saturate the heap with water.
Start layering again with more organic matter containing straw and kitchen and garden wastes, you can even add cotton clothes. Build up successive layers of organic matter topped with manure and watered down each time until you have reached the top. Deep saturation is important, so water until it runs out the bottom. Water the heap regularly thereafter. The heap will become extremely hot. This means that it is working.
You can tell when the compost is ready to use as there will be no recognisable lumps of organic matter and it will have a rich soil texture. Use the compost in the plant hole of seedlings and for conditioning the soil prior to planting. Avoid using it as a mulch, rather mulch over the top of it with straw or dig it into the soil.
Friday, October 14, 2011
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Acid-loving Plants
Acid-loving plants do not tolerate clay soils as they easily become waterlogged. The result is leaf scorch, indicated by brown patches on the leaves and a wilted appearance.
Rhododendron ‘Pink pearl’ will grow both in full sun and in dappled shade. When planting out you do not need to tease the roots, which should be tight and compact. Ensure that the top of the root ball is just below the soil surface. These plants do not require a lot of fertiliser and excess can retard growth, so don’t put fertilisers into the planting hole.
How do you keep the soil acidic? Mulch around the plant with compost, old cow manure and blood and bone. You can also use half-decayed leaves or pine needles because they are highly acidic. Always keep the mulch free from the stem or it will go mouldy.
These plants are poor at obtaining iron and alkaline soil can induce iron deficiency which can be identified by a yellowing of the leaves. The reason why these plants love acid soils is because they can obtain more iron under these conditions. Iron can be supplemented in the form of cheated iron, bought as a yellow powder. Place a large spoonful into a watering can and water over the leaves and into the soil. This type of iron can bypass the alkalinity and be absorbed readily by the plant, however it is only a temporary solution and long-term remediation of the soil may be necessary.
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Snail Control
There are lots of different ways of controlling snails. The most environmentally sound method is to put on some boots of a damp evening and go stomping as snails generally feed at night. Alternatively you can collect snails and slugs by hand and kill them by dropping them into soapy water. Many of us don’t have time for this so the next best thing to do is buy an environmentally friendly snail bait that won’t harm pets such as cats and dogs or the native wildlife.
Snails like to live on vertical surfaces in the heart of strappy leaved plants and in crevices. This makes targeting them easier. Simply put a few pellets into the heart of the plant out of the sight of other animals.
Another more organically sound method of snail control is to use organic sprays made from plants that will deter these pests. Quassia amara can be made into a spray that is applied to the soil to kill snails and slugs and can also be sprayed onto the leaves of trees affected by pear and cherry slugs. Sprays can also be made from wormwood, garlic and white cedar to make the leaves unpalatable to pests, but are not recommended on vegetables that are going to be eaten soon after.
A bowl of beer placed strategically in the garden can be effective against slugs and snails, which are attracted to it, crawl in and drown.
Wednesday, October 05, 2011
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Organic Principles
Organic gardens control pests and diseases in a number of ways. A good method is to employ crop rotation, which means cycling plants to a new bed every year, such that they are never in the same bed for 2 years running. Companion planting is another good method because these plants grow well together and protect one another. A good example is planting carrots, black salsify and members of the onion family alongside one another. Their different smells, colours and shapes confuse and deter insects. The same is true for sweetcorn, pumpkins, cucumbers and squash. Organic gardens are not free of pests, in fact they are full of them, but because no chemicals have been used, they are also full of predators which control pest numbers. Organic gardeners avoid using sprays by removing pest-infected fruit or shoots. For example, by removing young apples that were infected with coddling moth, the number of moths was lower the next year and fruit yield much greater.
There are many different types of organic gardens, not just fruit and vegetable but ornamentals as well. The plants in organic ornamental gardens have been nourished with rich organic matter and are therefore vigorous and healthy because they are strong enough to cope with and deter pests. Remember that organic gardening is not always easy or pretty, pests often nibble things but you will be better off for it in the long run. For example, Pete shows us a cabbage whose outer leaves have been chewed, but inside is a perfect cabbage that is very healthy because it has never been sprayed.
Friday, September 30, 2011
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Handwatering
Hand watering on a beautiful early morning or evening is a pleasurable experience that gives us the time to look more closely at our garden, the plants and the soil. We have more control over how the watering is done and can cater to the individual needs of different plants more successfully. Sometimes it is the only way to water plants deeply. Watering at these times helps to increase water penetration and minimise evaporation.
Potted plants under a verandah, eaves or awning must be regularly watered by hand and it is important to water the soil thoroughly all the way through. Check by feeling below the surface to make sure it has penetrated deeply. Soil can become hydrophobic if it is allowed to dry out too much and it is then difficult to wet again. Water will bead and flow over the surface of the soil and drain away without being of use at all to the plant. Wetting agents will have to be added to restore its water holding capacity. These can be bought in liquid or powder form and are applied to the surface of the soil.
Planters with a built-in reservoir at the bottom can save you time and water. Overflow can be prevented by checking the water level as the water drains into the base of the pot, and watering will be a lot less frequent.
Whether you are watering pots or plants in the ground it is important to water only the base of the plants. Keeping water off the foliage will reduce the chance of plants developing fungal diseases like black spot and powdery mildew. Pathogenic fungal spores will travel rapidly in water splash or soil run-off and infect otherwise healthy plants. Infrequent, deep watering will encourage root systems to penetrate the deeper soil layers and have access to more permanent water, as well as nutrients. A deeper root system stabilises plants, especially trees and large shrubs, making them less susceptible to wind, drought and insect stresses.
Plants require more water when in active growth and this may not necessarily be in the summer months. Observation of your own garden situation is critical in using water efficiently. The condition of the plants and the soil varies with the season; natural rainfall, temperature, wind and growth activity and these are conditions that cannot be taken into consideration with an automated watering system. Hand watering gives you the time to observe the changing relationship of all the elements that influence your garden and at the same time gives you the time to enjoy the plants and their smells.
Wednesday, September 14, 2011
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Pond Maintenance
Water hygiene is an important part of pond maintenance. The appropriate way to improve water quality is through plant selection and appropriate maintenance techniques. Nursery manager, Tony Debincat uses a safe way of removing bacteria and excess algae. He adds a very small amount of Condy’s crystals to the water, which changes the colour to a reddish tint that lasts for around 2 days before clearing. This treatment doesn’t harm fish or plants if used in an extremely low concentration similar to very weak tea. In spring it may be necessary to clean out the pond and carry out any repair work. In summer, check water level and quality, check for algal growth, clean out the pump and filter and check for dead, diseased or damaged plants. In autumn remove any leaf letter and cut back any excessive plant growth.
Waterlilies play multiple roles in a water garden. Their large leaves create shade, produce oxygen, provide a hiding place for fish and produce large beautiful flowers. The tropical waterlilies can be distinguished from the hardier types that grow almost everywhere from the flower stalks, which are above the water. The flower buds and stalks are edible and can be used in salads, just peel off the ‘skin’ from the stalk before eating. The margins of ponds are usually planted with bog plants that are very important because they filter out any unwanted materials. Some good marginal plants include the flowering Woolly Frogsmouth, Philydrum lanuginosum and canna species like Canna indica. There are also some beautiful foliage plants such as Lepironia articulata. If you want advice or help choosing the right plants go to a specialist nursery and remember not to let your pond go, they do need some maintenance.
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Organic Principles
Organic gardens control pests and diseases in a number of ways. A good method is to employ crop rotation, which means cycling plants to a new bed every year, such that they are never in the same bed for 2 years running. Companion planting is another good method because these plants grow well together and protect one another. A good example is planting carrots, black salsify and members of the onion family alongside one another. Their different smells, colours and shapes confuse and deter insects. The same is true for sweetcorn, pumpkins, cucumbers and squash. Organic gardens are not free of pests, in fact they are full of them, but because no chemicals have been used, they are also full of predators which control pest numbers. Organic gardeners avoid using sprays by removing pest-infected fruit or shoots. For example, by removing young apples that were infected with coddling moth, the number of moths was lower the next year and fruit yield much greater.
There are many different types of organic gardens, not just fruit and vegetable but ornamentals as well. The plants in organic ornamental gardens have been nourished with rich organic matter and are therefore vigorous and healthy because they are strong enough to cope with and deter pests. Remember that organic gardening is not always easy or pretty, pests often nibble things but you will be better off for it in the long run. For example, Pete shows us a cabbage whose outer leaves have been chewed, but inside is a perfect cabbage that is very healthy because it has never been sprayed.
Friday, August 26, 2011
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Seaweed
The sea is more than salty water. The sea is a vast nutriment. It contains a large spectrum of trace elements in suspension, and some of the debris that is washed up on the beach like seaweed and shells also contains a quite a lot of these trace elements. Seaweed is one of the best soil conditioners of them all. Seaweed itself contains very little salt. It is the sea sand that is enmeshed in it that is quite alkaline and needs to be removed. It can be used around almost any plant except acid loving plants like rhododendrons and azaleas or strawberries. It can be placed around but not near the actual plant, covered by peastraw or mulch, and will gradually convert to a jelly-like substance. Seaweed is not a fertiliser but a soil conditioner that has an amazing beneficial effect on plants. It can make them frost resistant and more resistant to diseases. The trace elements in the seaweed eventually are transferred to the soil and into the plant and its fruit.
Wednesday, August 24, 2011
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Rhododendron
Planting a new rhododendron like Rhododendron ‘Bruce Brechtbill’ is extremely easy. Rhododendrons have a very fine fibrous root system that is quite compact and does not need disturbing before planting. Tease the base gently if necessary. No fertiliser should be used in the planting hole and the root ball should be placed in the hole so that the surrounding soil is level with the soil at the base of the stem. If the stem is buried beneath the soil it can go mouldy and rot. Once planted the soil should be covered with mulch, once again keeping it away from the stem. Spread a handful of blood and bone around the plant, covering it with a layer of coir to seal it and water in well. Seeing how luxuriantly these plants are growing, it is surprising to learn how low their nutritional needs are.
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Mulches
Mulch material that has not been composted can cause short term nitrogen loss from the soil beneath. As bacterial microbes use available nitrogen to aid in decomposition of the mulch above, nitrogen in the soil is depleted. Composted pinebark mulch does not have this problem. The yellowed leaves of herbaceous plants, caused by nitrogen or a nitrogen deficiency, can be relieved by the use of liquid feed containing nitrogen.
Another good composted mulch is made from wood-fibre waste from the paper-making industry. It can also be made from such things as wood crates or council collected green organic materials. It compacts well, doesn't blow away although it can have an organic odour for a few weeks. When using mulches, or composts, make sure it is kept away from the stems of plants as this can lead to fungal decay.
Monday, August 15, 2011
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Begonias
Tuberous begonias grow best in partial shade or filtered sunlight. Exposure to excessive sunlight can result in burnt flowers and leaves. Too much shade results in foliage that is very lush with few flowers.
Growers recommend shade when the sun exceeds 50,000 lux. As full summer sun in Australia is 110,000 lux this means 50% shadecloth would be required in most areas. Normal interior light levels measure around 500 lux.
Friday, July 22, 2011
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Carrot growing tips
Carrots are one of the best vegies you can get kids started with in the garden. They don't take up much space, either, so even if you have only a small patch of sunny ground available, you can get a small crop of carrots growing.
Seed or seedling? Carrots (Daucus carota ssp. sativus) grow better if planted as seed where you want them to grow, but you can grow them from seedlings, too.
Sowing times: in temperate climates, you can sow carrot seed from August to March, and in cool climates from August until January. In tropical climates you can sow carrot seed from February through to November.
Preparing soil: preparing the soil before planting is important, as carrots need deep, well-drained soil that is free of rocks, stones, old roots or anything else that could get in their way. Dig the patch over really well down to the depth of a spade (about 30cm), until the soil is fine and crumbly. Add some compost and well-rotted manure, and mix that in well with the soil.
Sowing seed: to sow seed, mark little rows in the soil 6mm deep (about a quarter of an inch) scatter in the fine seed, then cover with soil or seed-raising mix. Water with a gentle spray. Tip: carrot seed is very fine, so if you mix up the seed with some dry sand and sprinkle that into the soil furrow, you'll get a better idea of where the seed is going. It will take about two to three weeks for the baby plants to emerge. As carrot seed is fine, you'll probably sow too many, so you'll need to thin out the excess seedlings. Wait until the plants are about 5cm (two inches) high, then thin them out to 2-3cm apart. Later on, when they're about 15cm high, thin them out to 5cm apart (these second thinnings are usually big enough to eat, so you end up with better value for money, and more delicious carrots!)
Sowing seedlings: tip the seedlings out of the punnet and separate them into individual plants, then plant them into well prepared soil, spacing them 5cm apart. Water in well with a gentle spray, and keep seedlings well watered until they're growing well.
General care: carrots are easy to look after and just need a steady supply of water to keep them growing rapidly.
Harvesting: carrots will be ready for harvesting about 3-4 months after sowing. If you're not sure if they are ready, just pull one out of the ground and see how it's going. Don't feel obliged to pull them all out, either. You can just harvest as many as you need that night, and leave the rest in the ground until you need them.
Problems: if your carrots come up with weird shapes, there are two common causes. One is when carrot roots strike rocks, stones, old plant roots - the carrots will bend around the obstruction and grow into strange shapes. Another cause of odd carrots is clumps of fertiliser or manure - these will cause 'forking', where the carrot splits into a clump of several roots. The other common problem with carrots is due to too much nitrogen-rich fertiliser: you end up with lots of leaves above ground, but poor roots below ground. So, a good rule with carrots is to go easy on the fertiliser.
Best varieties: seeds provide the best choice of varieties, as your choice in carrot seedlings is quite limited. Look for good performers such as 'Topweight', 'Western Red' and 'All Seasons'. For shallow soils or pots, try 'Early Chantenay' or 'Baby'. 'Manchester Table' has cylindrical roots.
Saturday, July 09, 2011
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Currawong
The pied currawong is a large black bird, 41-51cm (16-20") with white markings on the wing, rump, undertail and tip of tail. They are found from Cape York to south-western Victoria ranging about 400km inland.
Today currawongs are common in urban areas although their native habitats are forests and woodlands.
Recent research shows that while currawongs have a specialised wild diet of bull ants and stink bugs and native berries, our introduced (not native) garden plants have provided a range of winter fruiting plants to eat during the colder months. Less than 30 per cent of Australian native plants fruit in winter, and so normally a lack of food culled younger and less vigorous birds.
Exotic plants including pyracantha, cotoneasters, privet and hawthorn - planted in the suburbs, as hedges - have tipped the natural balance in favour of the currawong by providing berries whose seeds are then excreted into native bushland.
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Controlling Bitou Bush
Bitou bush (Chrysanthemoides monilifera ssp. rotundata) is a sprawling, woody shrub from South Africa. It was deliberately planted in New South Wales from 1946 to 1968 to stabilise mobile sand dunes in sand mining areas.
Unfortunately, bitou bush has proved to be a highly invasive weed, which takes over coastal ecosystems and outcompetes native plants. It is now regarded as the worst weed in the Australian coastal environment, and has recently been listed as one of Australia's Twenty Weeds of National Significance. It occurs along 660km of the NSW coast, with almost pure stands along 220km. There are concerns that bitou bush will become the dominant species within its current range, and also that it could spread into Victoria and Queensland.
Control methods
A number of control methods have been used, including hand weeding and the use of herbicides and fire. These techniques have to be repeated over several years in order to be successful in the long term, as bitou bush has a large and persistent seed bank in the soil. In conservation areas these methods are not always appropriate, and having to repeat treatments is time consuming and expensive.
Biological control
Scientists think that an integrated management approach, including the use of biological control, is the best and most cost effective way to tackle the bitou bush problem. A research program to find suitable biological control agents has been underway since 1987. Several natural enemies of bitou bush have already been released, including the bitou tip moth and the bitou seed fly, and these insects are impacting on seed production and reducing plant vigour. It's hoped that the release of a new biological control agent, the bitou leaf roller moth, will help to reduce bitou bush to a level where it is no longer a problem, or can be effectively controlled by other techniques.
Bitou leaf roller moth (Tortrix sp.)
The bitou leaf roller moth was identified in South Africa as being the most damaging insect to bitou bush. The larvae feed on the shoot tips, then move to older leaves as they mature. At high densities, they are capable of decimating plants. After extensive testing both in South Africa and Australia, the bitou leaf roller moth has been shown to be host-specific, that is it only survives on bitou bush and its close relative, boneseed, which is found in Victoria, Tasmania and South Australia. Bitou leaf roller moth was first released on boneseed in Victoria in April 2002. The first release in NSW was made at the Broadwater National Park, with others to follow along the NSW coastline.Natalie Portman's engagement ring
Cane toads
Cane toads (Bufo marinus) are natives of South and Central America. They were introduced into Australia in 1935 to help control the beetles which were decimating our sugarcane crops. Cane toads were useless in controlling the cane beetles but they have become a serious threat to native wildlife, invading wetland habitats and competing with native frogs. They are voracious eaters and will eat anything they can fit in their mouths, including frogs, lizards, snakes and small marsupials. The toxic toads are also a threat to any animals that try to eat them, including domestic pets. A dog can die in just 15 minutes after eating a cane toad.
Cane toads have adapted particularly well to the Australian environment. They are spreading west towards Kakadu National Park and south into New South Wales at the rate of 30km a year. According to the CSIRO, cane toads occur at a density in Australia 10 times higher than the density in their native Venezuela. In the past two months, toads have been discovered in suburbs across Sydney where they have never been found before, and there is concern that permanent colonies will soon become established. It is thought that the toads are inadvertently being transported south in consignments of building materials and landscaping supplies.
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Bats in Your Backyard
The bat is a fascinating creature that has appeared in the belief systems, art, literature, film and even recipes of people for centuries. You might not realise it, but bats will probably have visited your backyard at some stage this year. There are 966 species of bat in the world, and 90 of those are found in Australia. They come in all sizes, from a tiny Malaysian bat the size of a bumble-bee, to a huge bat from New Guinea with a wing span of almost 2 metres (6'). The fossil record shows that bats evolved as flying animals at least 60 million years ago. They are the only mammals that can fly, and the bone structure of their wings resembles that of an elongated human arm and hand. Bats are divided into two major groups, the megabats and the microbats.
Megabats
Members of the megabat group eat mostly fruit. There are 12 species in Australia including the Flying-fox, which can be seen by day hanging from branches in camps or communal roosts. At night some species fly up to 30 kilometres to their feeding areas, and some migrate as far as 1000 kilometres each year as they follow the flowering of eucalypts. There are also smaller fruit bats, for example tube-nosed bats and blossom bats. Fruit bats have sharp eyesight, and their sense of smell is so acute they can detect a tiny piece of banana from 100 metres (330') away.
Microbats
These bats eat mostly insects, they have small eyes and they rely mainly on sound (echolocation) for navigation. They are small in size and weigh from about 3-100 grams.
Thursday, June 30, 2011
Repair shop mishap
I wondered how those screws got there and then I remembered taking my car to my local repair shop for the busted radiator a few months back. The mechanics must have left those old screws in there like those horror medical surgery stories you hear of surgical instruments left inside a patient’s body!
Well I like the car services I’ve gotten from this repair shop but the screws incident reflects poorly on their lack of attention and thoroughness just this one time. I think I will give them another chance and hope that is the last mistake they make with my car.
Oleander
There are few plants which grow almost everywhere in Australia. The humble oleander (Nerium oleander), is such a plant and it is also one of the most useful of all garden plants.
If pruned correctly the oleander can be a magnificent plant, its dense foliage providing privacy where many other plants could not survive. Even on a very busy city road these plants can make a colourful screen against both noise and visual pollution. As it is dense but not woody it is also an effective road-side barrier as it should slow down a crashing car.
Oleanders are adaptable to a wide variety of growing conditions, from the salty winds of the seaside, to dry, sandy desert soils, and wetlands. They can be grown just about anywhere in Australia, preferring a well-drained, sunny position. They will manage to grow well in dry soil but cannot tolerate very wet conditions, although they like plenty of water during their main growing and flowering times.
They have a long flowering season, (summer to autumn) and a wide range of colourful varieties. The most common colour is pink, although there are also red, white and apricot flowers.
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Wisteria
Grown and admired in China and Japan for over a thousand years, wisteria is one of the great garden plants. These vigorous, long lived climbers like a sunny position with good drainage and reliable moisture during flowering and the initial growth period. In Australia they grow well in Perth, Adelaide, Melbourne, Hobart, Sydney and the mountains.
In China and Japan wisteria is often displayed on bamboo frames, but in Australian gardens this is not practicable. However, a pergola can easily be constructed from treated pine, which is readily available and affordable. The pergola needs to be high enough so that people can walk under it without brushing against the flowers, and wide enough so that two people can walk side by side. Wisterias can be trained to grow up a strong pole and then allowed to spread onto a few cross pieces. This creates a wonderful standard effect, which can be achieved with plants grown either in the ground or in pots. Probably one of the most famous displays of wisteria in the world is at Monet's garden at Giverny near Paris, where W. floribunda 'Shiro Noda' grows on the railings of the Japanese bridge.
Wisteria
In China and Japan wisteria is often displayed on bamboo frames, but in Australian gardens this is not practicable. However, a pergola can easily be constructed from treated pine, which is readily available and affordable. The pergola needs to be high enough so that people can walk under it without brushing against the flowers, and wide enough so that two people can walk side by side. Wisterias can be trained to grow up a strong pole and then allowed to spread onto a few cross pieces. This creates a wonderful standard effect, which can be achieved with plants grown either in the ground or in pots. Probably one of the most famous displays of wisteria in the world is at Monet's garden at Giverny near Paris, where W. floribunda 'Shiro Noda' grows on the railings of the Japanese bridge.
Saturday, June 18, 2011
9v batteries
First Trip To Sydney.
Sydney is a beautiful city & I was kicking myself wondering why I didn't bother to visit sooner.
Fast forward to the next day, we went sight-seeing in the city & decided to visit the chinese garden.
We saw this cute little stone child monk & I couldn't resist rubbing his head!
We also went up the Sydney Tower for a panoramid view of the city, in this photo you can see the tower's shadow against the park's trees.
What a breath taking view!
In the evening we went for a harbour cruise tour & the city's silhoutte with the sunset was magnificent! I particularly like the bright lights from Luna Park!
On the third day, we went on a city explorer & bondi explorer buses to visit all the landmarks around town & Bondi where the sand on the beach was perfect.
We then took the ferry across to Manly & decided if we were to live in Sydney it would be here.
On the fourth day, we went on the harbour cruise again to see the city lines.
We got to Watson Bay & found this really cool cliff that faces out to the ocean.
On the way back we saw the start of the Tsunami Aid Concert outside the Opera House. The next day, unfornately we had to go back to Melbourne. We want to go again!
Wednesday, June 08, 2011
Yoga mats
Red eggplants
Sunday, May 29, 2011
Invitations
Cheap plants
Sunday, May 22, 2011
OxyElite Pro review
Tips for growing vegetables
- Vegetables need full sun and shelter from winds - a north-facing situation is best with at least six hours direct sun, including morning sun.
- Vegetables should be grown rapidly for best flavour - this is achieved with regular, usually daily watering, and regular applications of liquid food (every fortnight).
- Vegetables need a well-drained soil, with a loose, crumbly structure - digging well-rotted manure in to a spade's depth before planting will improve the structure of any soil.
- Use additional fertiliser to encourage good growth - leaf vegetables need fertilisers that are high in nitrogen, while fruit and root vegetables need a good supply of phosphorus.
- Spread your harvest - make repeated plantings (or sowings if growing from seed) every few weeks, also eat some vegetables when they are small and succulent, but leave others in the ground to develop further.
- Protect your vegetables from snails and slugs by using snail baits - but take care as snail baits are toxic to pets, especially dogs and native animals (follow the directions on the packet). Other methods of snail control include collecting and squashing, and traps such as beer traps or barriers.
MD Clear review
Fresh Vegies
The best way to have fresh vegetables is to grow your own to pick fresh each day. If you buy vegetables from a greengrocer or supermarket, it is important to know how to choose the freshest vegetables available and how to store them to keep them fresh. Here are Rosemary's tips for choosing the freshest vegetables: Buy from a greengrocer or supermarket with a good turn over. Select vegetables which look, feel and smell fresh. If you can bend a carrot it will have lost most of its goodness. Spinach or other greens which are wilted have lost most of their water soluble vitamins B and C. Buy small amounts often (so they keep fresh) and vary the way you serve them.
Saturday, May 14, 2011
Inpatient rehab treatment centers
Archerfish
Motorhome repair
Siamese Fighting Fish
The Siamese Fighting Fish is native to the South-East Asian region of Thailand (formerly Siam), Cambodia and Vietnam. It survives in the wild anywhere where still water lies, such as rice paddies, stagnant ponds and road-side drains.
The species attracted its name because of the aggressive nature of the males towards each other. Because the fish are common to very small bodies of water, even water-filled buffalo hoofprints, males must fiercely protect their territory, or lose their breeding ground to a stronger male.
Thursday, May 05, 2011
Treasure metal detectors
Orchids
Thursday, April 28, 2011
Back acne treatment
Autumn jobs
Strawberries planted now will produce fruit in October and November. Put some mulch around the base of a citrus tree, making sure not to allow any of the mulch to touch the trunk. Some citrus trees, such as Emperor mandarins, bear so heavily that the branches bend over with the weight of the crop. When this happens it is necessary to do some emergency thinning to prevent the branches snapping under the strain. Ideally, the best time to prune citrus is after the crop is harvested.
Two step stool
Adding Organic Matter to Soil
Hydrophobia usually occurs in sandy soils and often it is caused by mulches. When uncomposted mulch sits on the surface of the ground, waxy, oily material leaves that mulch as it breaks down and coats each individual grain in the soil. When the soil dries out and you try to rewet it, the waxy, oily coating on the grains won't let the water back in and the soil stays dry.
If you took that same mulch and put it into a compost heap, micro-organisms such as bacteria and fungi would break down the waxy and oily material along with the organic matter. As well, the remnants of organic matter that you get at the end of composting actually aid the soil to form tiny little cracks that allow water to penetrate - drying out is never really an issue and the soil always rewets. So organic material used as a mulch causes the problem, but solves the problem when used as a compost.
Tuesday, April 19, 2011
Cigars
Growing Better Pot Plants
Watering pot plants can be difficult, as the water often is not absorbed below the surface. A wetting agent acts to open up the potting mix and allows water to be fully absorbed. An experiment conducted with three pot plants with standard potting mix which had typically dried out, indicates the importance of a good wetting agent.
Thursday, March 31, 2011
Men's gifts under $20
Carnivorous plants
Wednesday, March 23, 2011
Age spots
Cyclamen
Conference calls
Crepe myrtles
A deciduous, vase-shaped tree about 6-8m (18-25') tall. It is often severely pruned and grown as a shrub 3-4m (10-12') tall. Trusses of white, pink, mauve or purple blooms appear in late summer. The petals are ruffled, with a crepe-like texture. In autumn the mid-green leaves turn yellow, orange or red (depending on the variety) before falling. Unpruned crepe myrtles develop beautifully coloured, smooth, mottled trunks. There is an Australian native crepe myrtle (Lagerstroemia archeriana), which grows to around 7m (20') tall and has pinkish mauve flowers.
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Clivias
Clivias are wonderful, almost unkillable plants, which brighten the garden during late winter and early spring with clusters of vibrant yellow throated, orange or salmon trumpet flowers. The flowers are held on stalks above the clump of dark green strap-like leaves.
Native to Natal, South Africa, clivias were named after Lady Charlotte Florentina Clive, Duchess of Northumberland, who was the granddaughter of Robert Clive, better known as Clive of India. The name Clivia can be pronounced as the name Clive to rhyme with 'hive' (Clive+ia) or with a hard sound as in 'liver' (Cliv+ia). Many of the clivia enthusiasts pronounce it the latter way.
Disability insurance
Citrus Tips
Monday, March 07, 2011
Office supplies
Bamboos
Running bamboos can cause awful trouble in the garden where they can grow from one property to another. These bamboos are classified as noxious weeds in some areas of Sydney. So if you're growing running bamboo such as the Golden Bamboo (Phyllostachys aurea), Green Onion bamboo (Pseudosasa japonica 'Tsutsuminia') or Black bamboo (Phyllostachys nigra) confine them in pots or in garden beds lined with concrete, special rubber or other impervious barriers. The depth of the barrier needed varies among species but to be safe it should be at least 1m (3') deep.
Monday, February 28, 2011
Banking jobs
Yuccas
Thursday, February 24, 2011
Chicago auto repair
Lucky for me a work colleague helped out referring me to his uncle’s garage which is near by. While at the auto repair shop they did a marvellous job checking my Camry thoroughly, even check engine light and the oil filters too. I think I’m going to love this city.
Red eggplants
Eggplants require a position in full sun and a long, warm growing season. In warm, frost-free zones (for example the tropical and subtropical parts of the Northern Territory and coastal areas of north Queensland) they can be grown all year round. In temperate climates (coastal and near coastal districts of southern Queensland, New South Wales and Western Australia) seed can be planted from August to December. In cool to cold climates (southern Australia, mountain and frost-prone inland districts), delay planting until September and make last plantings by the end of November.