Outdoors: sow thinly, March-May, where they are to crop, 1.5cm (½”) deep, directly into finely-prepared, well-drained soil, which has already been watered. Seedlings usually appear in 7-21 days. Thin seedlings to 30cm (1′) apart. Water well until plants are established. Keep moist and weed free. If desired, plants can be kept smaller by pinching back regularly. Harvest: June-October. Pick leaves and stems as required. Harvest ripe seeds once they have turned brown.