Broccoli Raab

Broccoli raab (Brassica rapa var. ruvo) is an Italian specialty vegetable producing small, broccoli-like florets with long, tender stems and leaves. Despite its name, it is more closely related to turnips and turnip rape than to true broccoli. It grows very rapidly and has a distinctive, pleasantly bitter flavour with mild mustard notes. It thrives in cool conditions and tolerates light autumn frost.

Growing

Direct sow seeds 0.5 cm deep into well-prepared soil once soil temperature reaches 5 °C. Space plants 20–30 cm apart; wider spacing delays bolting and extends the harvest window. For the best autumn crop, sow later in summer when soil has cooled; an early sowing under glass or directly in the ground can also work well. No indoor starting is required — direct sowing is preferred.

Care

Keep soil consistently moist but not waterlogged; uneven watering accelerates premature bolting. Apply a balanced fertiliser at planting and a nitrogen-rich top dressing once plants are established to support rapid leaf and shoot production. Weed regularly when plants are young, as broccoli raab is fast-growing but vulnerable to early competition.

Harvest

Harvest when the floret buds are still tightly closed and before any yellow flowers open — once flowers open, quality declines quickly. Cut the central shoot first; the plant will continue producing side shoots for successive harvests. Florets are typically 3–6 cm across. Check plants daily during warm spells, as shoots can pass peak readiness within 24 hours.

In the kitchen

Blanch in well-salted boiling water for no more than two minutes, then finish in a pan with olive oil, garlic, and chilli flakes. Use in pasta sauces, soups, and stews. The raw leaves and florets can also be eaten in salads. The flavour is stronger and more bitter than conventional broccoli, working well with bold seasonings.

Storing

Use immediately after harvest for best quality. Unwashed stems can be kept upright in a glass of cold water in the refrigerator for up to 3 days. Blanched shoots freeze well for up to 3 months — blanch briefly, cool rapidly in ice water, drain, and freeze in airtight bags.