The main jobs in April are planting, sowing (both indoors and directly into the beds), and weeding. April is a busy month for gardeners. Hopefully, you have been able to prep your veggie plots in March and they are now ready for action.
Your seed potatoes should be chitted (=sprouted) by now and ready to plant. Now it is time to plant them. If you have a limited amount of space, try growing them vertically in potato grow bags, or towers.
Tomatoes, Chillies & co
Tomatoes, Chillies, Aubergines and Zucchinis are ‘long-season plants’, and they like it warm. That is why we need to start them early, indoors. The best time to sow them is during the latter part of March, from about Equinox, but April is just about okay, too. Start them as soon as possible, under glass.
Alternatively, you can buy young plants at the farmer’s market or garden centre next month. Or, perhaps one of your gardening friends has far more plants than they have room for in their garden and are happy to share.
If you started your tomatoes very early they may begin to look straggly by now but don’t be tempted to plant them out until there is no more danger of night frosts. Instead, pot them up and cover the stem with soil up to just below the first leaf node. This will encourage them to develop more roots and prevent the stem from getting too dangly.
Onion Sets and Shallots
Continue to plant onion sets to extend your harvesting season.
Sow beetroots directly into the prepared plots. or containers. Sow about 10cm apart or thin seedlings out once they are about 3cm tall.
Carrots can also be sown directly into the well-prepared ground. They prefer loose, sandy, well-draining soil. If the ground is too heavy or full of stones the roots will fork. Carrots are very fragile as seedlings and don’t take so well to being transplanted. Starting carrots in a gutter pipe is a nifty gardening hack. The contents of the drain pipe can be transferred directly to the prepared plot without the need to handle individual seedlings.
You can still sow leeks under glass now. Once they’ve grown to about 15-20cm transplant well-prepared soil. Plant them deeply (20cm deep holes) to get a long blanched shaft. Plant approx. 15cm apart. Space rows about 30cm apart.
If you stagger the sowing and transplanting you can significantly extend the harvesting season, which can start as early as August and continue through the winter. It’s best to harvest them fresh as needed.
Sow radishes at regular intervals right through August to ensure a continued supply. The seeds are tiny, so thin seedlings out to about 2,5cm per plant once they are about 3cm tall. They are an ideal ‘gap’ crop or row marker – they grow fast and can be harvested long before a slower-growing main crop develops. Filling gaps with radishes also helps to keep the weeds at bay. Water regularly and keep an eye out for predatory slugs and snails.
Coloured varieties of Swiss Chard are beautiful ‘edimentals’, whether you like the taste or not. They can be sown directly into a well-prepared bed. The nice thing is, they are tolerant of partial shade, so they don’t have to take the prime spot in the garden.
Like radishes, turnips are a fast and easy crop to grow. If you harvest them young they can be eaten raw or cooked, and the leaves can be used as well.
Sow peas at intervals to ensure a continued supply. Unlike most plants, peas don’t mind growing closely together. There is no need to thin them out: growing them in thick bunches keeps the weeds down and increases yields. Keep them moist at the beginning. Later, water deeply once a week, especially during the summer when they start to flower. Mulch to keep the moisture in the soil.
Controlling weeds is a tiresome task, but if you get on top of it early, you will save yourself a lot of time and effort later in the season, when it gets much harder to pull them out without damaging your crops. Mulching greatly helps to keep weeds down and moisture in the ground.
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