One of summer's real delights
A classic for sunny borders and wild areas. Excellent cut flower, attracts butterflies and bees.
Plant Class: Hardy Perennial (HP).
Habit: Bushy, Medium.
CAUTION: May cause skin allergy.
Sow indoors for surest results, March-May, 0.5cm (¼") deep, in trays of compost. Water well and place in a cold frame, unheated greenhouse, or on a cool windowsill. Seedlings usually appear in 14-42 days. Transplant seedlings, 5cm (2") apart, to further trays when large enough to handle. Always hold seedlings by a leaf, never by the stem. Gradually accustom young plants to outside conditions (avoid frosts), before planting out into well-drained soil, May-October, 25cm (10") apart. Or, sow outdoors, March-May or September-October, in a seed bed, into finely-prepared, well-drained soil, which has already been watered. Thin seedlings to 5cm (2") apart, before planting out to flowering position in spring or autumn. Flowers: June-August, the following year.