Garlic Chives

Garlic chives (Allium tuberosum) are a perennial allium native to China, producing flat, dark-green leaves 35–40 cm long with a distinctive mild garlic flavour. Unlike common chives, the leaves are broad and strap-like, and the plant produces ornamental white star-shaped flowers that are also edible. It grows vigorously from the second year onward and should be covered or mulched through its first winter in Nordic conditions. Clumps benefit from division or resowing every 3–4 years to maintain vigour.

Growing

Direct sow outdoors when soil reaches 10 °C, or start transplants indoors 10–12 weeks before outdoor planting. Sow seeds in clumps of 15–20 seeds or in rows, 1 cm deep, with 30 cm between clumps and rows. For transplants, maintain air temperature of 15–20 °C during germination. Germination takes approximately 10 days. Transplant outdoors once nights stay reliably above 5 °C and frost risk has passed.

Care

Grow in full sun to partial shade in nutrient-rich, weed-free soil. Water consistently but avoid waterlogging. Top-dress with compost in the second year to support vigorous regrowth. Harvest lightly in the first year to allow root establishment. Mulch or cover clumps through the first winter; established plants are reliably cold-hardy from the second year. Divide clumps every 3–4 years to prevent overcrowding and maintain productivity.

Harvest

Harvest sparingly in the first year; from the second year onward, cut the entire clump down to 3–5 cm above the soil once leaves reach 20–30 cm. Plants regrow readily and can be harvested repeatedly throughout the growing season. Harvest flower buds before they open — the budded stems are considered a delicacy. Stop cutting 4–6 weeks before the end of the growing season to allow the plant to build energy reserves.

In the kitchen

Use fresh garlic chive leaves chopped into dumplings, stir-fries, noodle dishes, egg dishes, and soups. The mild garlic flavour is less pungent than garlic cloves and integrates well into Asian-style cooking. Flat leaves make an elegant garnish. Edible white flowers add a decorative and mildly garlicky touch to salads and cold dishes. Unopened flower buds, harvested on long stalks, can be sautéed or used as a vegetable.

Storing

Store freshly cut leaves wrapped in damp paper towel inside an airtight bag in the refrigerator for up to one week. For longer storage, chop and freeze in small portions — frozen leaves lose texture but retain flavour for cooking. Dried chives keep in an airtight container away from light for up to 6 months, though flavour diminishes significantly.