Crocosmia Firestarter

Crocosmia dies back completely over winter and can be slow to emerge in spring, especially after a cold season. Leave the planting area undisturbed until late spring, and make sure the corms have not been sitting in waterlogged soil.

Plant Crocosmia in a sunny or lightly shaded position, in fertile soil that holds some moisture in summer but drains freely in winter. Plant corms around 8 to 10cm deep and 7.5 to 10cm apart in groups for a fuller display.

Crocosmia needs enough sun and moisture while it is growing to flower well. Dry soil in summer, deep shade and overcrowded clumps can all reduce flowering. Water in prolonged dry spells and divide congested clumps in early spring.

Most Crocosmia types are hardy perennials and return each year from their underground corms. In cold or exposed gardens, apply a thick dry mulch over the area in winter to help protect the corms from frost.

Yes. Crocosmia forms new corms each year and gradually creates larger clumps. This is useful for filling a border, but divide the plant in early spring if it begins to take over or the centre of the clump flowers less well.