Brussels Sprouts in Wren's Nest

Sow seeds indoors in modules or pots around 28th February - 15th March. Use a good seed compost and cover with 1–2 cm of soil. Keep at 15–18 °C for germination, which takes 7-14 days.

Once seedlings have their first true leaves, prick them out into individual pots around 21st March - 28th March. Handle by the leaves to avoid stem damage and plant at the same depth as before.

Gradually acclimatise plants to outdoor conditions over 7-10 days around 11th April - 18th April. Start with a few hours in a sheltered spot and increase exposure each day.

Plant seedlings into their final position around 28th April - 12th May. Space them 60 cm apart in firm, fertile soil. Firm the soil well around each plant to prevent wind-rock.

Immediately after transplanting, cover plants with fine mesh netting to protect against cabbage white butterflies and pigeons. Fit brassica collars around the base of each stem to deter cabbage root fly.

Apply a nitrogen-rich fertiliser every 28 days from 9th November until 19th May. Water it in well to support the heavy leafy growth needed for good sprout formation.

Start harvesting from the bottom of the stalk upwards around 9th November - 23rd August. Pick sprouts when they are firm and about the size of a walnut. Frost improves their flavour, so continue harvesting through winter.