Seed sales for edible plants have boomed as many house-bound people have adopted the ‘green therapy’ of gardening. Organic gardening has long been respected for providing healthy outdoor exercise and mental health benefits while providing healthy, pesticide-free produce for your family.
My book Easy Organic Gardening and Moon Planting has been helping gardeners get the best from their gardening efforts since 2006. It provides practical advice on what to grow when in the perpetual monthly diary, and how to get good results in both your vegetable patch and ornamental parts of your garden. It can be used with, or without, moon planting. There are also sections on compost making, worm farming, drought-proofing your garden, and much more. See reviews: My book
Easy Organic Gardening and Moon Planting is available as both a paperback and e-book, and can be ordered on-line, so you don’t have to leave home to find it. Happy gardening, everyone.
Have you ever wondered why they were called eggplants? This variety is the reason. The small white fruit, which look like hens’ eggs hanging on a bush, has a delicious flavour but has been very difficult to find in recent years and I was delighted to finally find some seeds. Yates has ‘White Star’ and there is a variety called ‘Easter Egg’ available from an Australian grower on eBay.
Aubergines (Solanum melangena) are a member of the tomato family and require a similar position, soil preparation, and soil pH. However, they require warmer conditions for germination than tomatoes and are usually sown 1 cm deep in small pots in a warm, protected position. The small, white variety produces a compact bush and can be grown in beds or pots. Aubergines need staking because the stems are brittle, and they appreciate a light application of poultry-based, complete fertiliser as buds form. Regular harvesting increases production. Cut fruit from the plant with a 2 cm stem when the skin is firm and shiny.
Occasionally, garden gurus will say that “beans will grow on the smell of an empty fertiliser bag because they will fix nitrogen in the soil”. This is not true in Australia, where the soil bacteria that is necessary for these legumes to fix nitrogen does not occur naturally. Gardeners are often then disappointed to find that the lower leaves of their beans and peas have yellowed.
French or green beans (and peas) will benefit from the addition of some mature compost and a light application of complete fertiliser when preparing the planting area. Plants need more than nitrogen to be healthy and produce good crops, and compost in soil helps beans resist bean fly.
French beans do well in a sunny position with a soil pH not lower than 6. However, they may need some temporary shade during our heat wave conditions. Regular, deep watering and a 5 cm layer of mulch over the bed will help to keep them growing strongly. Bush varieties of French beans grow best when sown in a block rather than rows, and can be ready to harvest in eight to ten weeks after sowing.
For a continuous supply, sow a small quantity each month listed in the monthly planting guide for your climate.
All types of corn are pollinated by breezes that blow pollen from the male flowers onto the silk threads that emerge from the top of each ear of corn. This is why it is better for home gardeners to grow corn in a block rather than a long row. Each strand of silk is connected to a separate immature seed and is covered in tiny sticky hairs that collect the pollen. If some silk strands don’t receive pollen, kernels may not form along one side of a cob, or near the top of the cob. (Female part of corn plant in photo at left.)
Male flowers form at the top of the corn plant as an upright spike and lower branches that open out like umbrella spokes. Pollen forms in small yellow ovals (anthers) that release their pollen mid morning after dew has dried from the flowers (between about 9 and 11 am). The centre spike is the first part to release its pollen. Pollen release may only last from 3 to 5 days and the released pollen is only viable for up to 24 hours. (Male flower in photo at left.)
It can help when growing small quantities of sweet corn or popcorn to pollinate it by hand, to ensure that the cobs your plants produce are full of juicy kernels. In nature, silks are rarely pollinated by the same plant.
To ensure good pollination, you need a sheet of A4 paper and a clean, dry, soft paintbrush. Fold the paper in half lengthways and open it out, then fold it in half the opposite way and open it out. This helps the paper to form a shallow well. Or, you can use a small clean shallow tray – something easy to manoeuvre between the plants. Hold the paper under a male flower and gently tap the spike and lower branches of the male flower with the handle of the paint brush. When tassels are ready to be pollinated, plenty of bright yellow pollen will fall onto the paper. Collect some of the pollen on the hairs of the paintbrush and dab it onto all sides and the centre of silk strands of other corn plants. Repeat this process over several days. Once a tassel has been pollinated, the ends of the silk strands will start to turn brown. As the cobs mature, you may have to net your corn crop as birds know when corn is perfect for eating.
Corn anthers won’t release pollen when conditions are too wet or very dry, the plants will wait until conditions are favourable. In areas of Australia that experience long periods of rain, it is best to plan your corn crop to avoid the wet season.
Snake beans are a good value crop for the vege patch where summers are hot, and French beans may struggle or be attacked by birds. They are prolific croppers over a long period and 4 plants are probably sufficient to supply a family of 4. Ours were still cropping at the beginning of June this year. A popular ingredient in Asian dishes, they can be substituted for French beans in many recipes, and blanched, young beans can be added to salads.
Snake beans can grow up to half a metre or longer but tend to become a little tough if allowed to grow to this length (i.e. the beans at the bottom of the photo). They are best eaten when 30 cm or so in length while seeds are small, and they are young and tender. Pods grow fast and should be picked every day, or every second day at least, to ensure that they are harvested at their best, and to keep the vines forming new pods.
Snake beans take up very little space in the garden as they are grown on a trellis in soil that has plenty of compost and some organic complete fertiliser added, which should keep the soil pH at an ideal level (6.5–7). In late spring, when soil temperature is at least 15 degrees Celsius, sow seeds in damp soil 1 cm deep and 30 cm apart. Water to settle soil after sowing. Do not water the soil again until seed leaves appear, then water regularly to ensure healthy growth. In tropical areas where summer rainfall is heavy, sow seeds in hills to improve drainage. Seeds germinate quickly, and vines can produce pods in 60 days in very hot weather. Greenpatch Organic Seeds has two varieties of snake bean; one with black seeds that produces pods up to 45 cm and one with brown seeds than produces thin pods to 60 cm.
Allow a couple of pods to mature until they have yellowed and lost their ‘puffiness’ (see photo). Then continue the drying process indoors. De-pod seeds when pods are crisp.
Just a reminder that April is a good time for planting spring-flowering bulbs in most areas. Gardeners in warmer climates can put bulbs into the vegetable crisper of the fridge for a month’s chilling before planting in May.
Add plenty of compost and some complete organic complete fertiliser to the planting area. Nutrients will be absorbed by the plants during the growing season and withdrawn into the bulbs as the foliage dies back to ensure good flowering the following season, so remember not to remove foliage before it becomes brown. Bulbs are normally planted at a depth twice the width of the bulb. In warm climates, plant suitable bulbs up to twice as deep as indicated on the packet. After planting, mulch the area in early morning when the soil is cooler and keep the planted area just damp until growth appears, then water regularly. For moon planters, Full Moon phase is the best time to plant bulbs. This year (2014) the Full Moon occurs on 15th of April and May.
March and April are good months for planting garlic in temperate to warmer parts of Australia. This year we are going back to growing the ‘Italian White‘ variety as our winters are becoming too mild for the hard-necked varieties. ‘Italian White‘ is a soft-necked garlic more suited to warmer areas. Cloves are slightly smaller than the purple hard-necked garlic but it has a lovely flavour and keeps longer than the hard-neck varieties.
We will sow ours in the middle of April (during Full Moon phase), after separating the knobs into individual cloves. The larger cloves from each knob will be planted, flat end down, just below the surface into soil rich in compost with a pH close to neutral. We usually plant our cloves 15 cm apart in rows 30 cm apart so that the canopy formed by the leaves helps to keep the mulched soil cooler. Garlic needs regular, deep watering (not a daily sprinkle) and hates competing with weeds. Green Harvest has a range of garlic for planting, and their garlic page will help you to decide which variety is best suited to your local climate and needs.
If you want to grow a small quantity of garlic from knobs purchased from your greengrocer, make sure it is Australian garlic. Imported garlic is treated with methyl bromide, a nasty gas that has been banned in Europe and may prevent cloves from growing.
Garlic takes 6 to 8 months to develop a bulb depending on the variety and climate.
True scallions (Allium fistulosum) that originated in the Far East do not form a bulb. Also known in Australia as spring onions or green onions, these onions are a versatile herb that are used as raw or cooked vegetables In some areas they are sold as shallots, however, true shallots (Allium aggregatum) form a light brown bulb. Scallions are harvested as required as they cannot be stored for long periods. Their pencil-thick stems and hollow green leaves provide a mild flavour used raw in salads, or cooked in many Asian dishes. Chinese herbalists value them for various medicinal properties.
Scallions are easy to grow in all climate zones in Australia, and can be ready to harvest in 8 – 10 weeks. Young seedlings respond well in a compost-rich soil and an application of weak, fermented manure tea watered in several days after transplanting.
Seed of green onions does not keep for long and seed collected for sowing next season will produce a vigorous crop as this seed will have come from plants that have adapted to your local soil and climate conditions. Leave several of your green onion plants to produce seed from their globular flower heads (umbrels).
To save seeds from your spring onions, see Spring onions – saving seed
July and August are ideal months to get a head start on weed control. Last Quarter phase is a good phase for weeding because seed germination tends to be lower then, and you are less likely to stimulate further weed seed germination while removing weeds. Many weeds that germinate in cultivated soil are and pests that damage vegetable crops. July is too late to eliminate the lawn weed Bindii as the spiky seed heads will be starting to form.
You can find organic treatments for troublesome weeds in the ‘Weeding Between the Lines’ category on this blog.
Passionfruit vines rely on bees to pollinate their flowers because they have a large gap between the pollen-bearing male parts of the flower and the female part. Only when the female part of each flower receives passionfruit pollen can the flower form a fruit. If you don’t have a lot of bees around your passionfruit vine, or if you have a young vine with few flowers, you can pollinate the flowers by hand.
All you need is a small, soft watercolour paintbrush for the job, and this short video by “woodyfriendron” demonstrates the practice beautifully: