Longs épis de Fl. olive à émeraude, en forme de cloches qui coupées fraîches durent plusieurs années une fois séchées.

Sow in spring 3mm (1/8in) deep in a free draining seed compost. Germination can be slow. To speed this up seal in a polythene bag after sowing and leave in a refrigerator (3-5C) for 2 weeks then place in warmth 18-21C (65-70F) when germination usually starts after 14-21 days.

Transplant when large enough to handle into 8cm (3in) pots, grow cool and gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost 23x30cm (9x12in) apart in a sunny well drained site.

To dry pick on a dry day when flowers are fully open, hang upside down in small bunches in a dry airy place until fully dry.