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It is the easiest of the winter crops as it is cold hardy, grows quickly, has a long harvest period and is not troubled by pests. Kale leaves actually become sweeter and milder in flavour after a slight frost.
Growing tips
• Start seed in seed trays in early April to transplant six to eight weeks before the first frost. Seedlings should be 10cm high (two true leaves).
• Transplant into fertile soil that drains well, in full sun or partial shade, although plants will not be as sturdy or leafy as those grown in sun. Space plants 45–50cm apart and in rows 60cm apart.
• After transplanting, feed with a nitrogen-rich liquid fertiliser and follow up with a liquid fertiliser such as Margaret Roberts Organic Supercharger once a month.
• Water regularly and draw up the soil around the stems of taller kales like ‘Chou Moullier’ and ‘Black Tuscan’ to support them.
