Chives: Sowing, planting and harvest calendar

Choose common chive seeds, Allium schoenoprasum, for slender, hollow leaves. Sowing under cover lets you prepare small clumps before moving them outdoors or into pots. Adjust timing to your climate and available light: a cold, dark shelter provides very different conditions from a bright place inside the house.

Fill clean pots or modules with drainage holes using fine seed compost that has already been moistened. Sow a few seeds in each container to form small clumps, without making the sowing overcrowded. Cover with about 0.5 to 1 cm of compost according to the packet, press gently and label. Keep somewhere warm and bright. Water carefully to maintain slightly moist compost, allowing surplus water to drain freely.

Watch emergence without expecting the same interval for every seed lot. Once leaves appear, avoid overheating behind glass and provide plenty of light. Let the seedlings root well. You can move a small clump with its rootball if the container becomes crowded. Gradually harden it off before outdoor planting. Well-rooted plants around 10 cm tall are a more useful guide than a fixed date.

Sow chives in spring when the ground is workable, adjusting the date to your climate and the supplier’s guidance. Choose sun or partial shade and well drained soil that retains some moisture. Weed and prepare a fine surface without assuming deep digging is necessary. A little mature compost may help poor ground. A container with drainage holes also suits outdoor sowing.

Distribute seeds in small groups or sow thinly along a marked row. The spacing of future clumps is not the spacing of individual seeds: you do not need to place each seed twenty centimetres from the next. Cover lightly with fine soil according to the packet, then water gently. Keep the seedbed moist until emergence without soaking it or allowing a pot to dry out completely.

When seedlings are sufficiently developed, thin or move small groups while preserving their roots. Allow at least around fifteen centimetres between clumps, adjusted to their vigour and the access you need. Continue gentle weeding during establishment and identify the shoots before working. Temporary protection may be needed if cold weather is forecast. Let the young clumps establish before beginning to cut leaves for harvest.

Plant your chives in sun or partial shade, in fertile soil that retains moisture without becoming waterlogged. Spring is a good time to establish young plants. Avoid frozen or saturated ground, however, and gradually acclimatise plants raised under cover before moving them outside.

When dividing an existing clump, take small sections containing several shoots and their roots. Do not separate just the green blades: these are leaves, not independent plants. Dig holes suited to the root balls, position each division at its previous level, then backfill and firm gently. Leave about twenty to thirty centimetres between clumps, allowing for their growth. Water after planting to settle soil around the roots.

For container growing, use a pot with drainage holes and suitable compost. Monitor moisture while plants establish without leaving water in the saucer. Later, divide or repot if the clump becomes crowded rather than because a fixed date has arrived. Chives are perennial, but their foliage may disappear in winter. Planting therefore does not guarantee fresh leaves to harvest throughout the entire year.

Start picking chive leaves once the clump is well rooted and carries enough developed leaves. Harvest during active growth according to your climate; outdoors, foliage may disappear over winter. A young clump or weakened plant needs lighter picking than an established one. Watch fresh growth between harvests rather than following a fixed picking interval.

Use clean scissors and cut leaves close to their base, leaving a few centimetres above the soil without touching the small bulbs. Take only what you need. Distinguish hollow leaves from the firmer flower stems. On a vigorous plant, harvest one section of the clump and allow that part to replace its foliage before returning to it. Young plants should not be stripped continually.

Remove damaged leaves, wash gently and drain. Use fresh leaves promptly because they wilt, and their flavour does not survive prolonged cooking well. For short storage, refrigerate them in a suitable container. Newly opened flowers are edible too. Pick a few or leave them for visiting insects. Harvesting these parts does not require uprooting the plant, so keep the rooted clump in place.