How to grow crocosmia
Crocosmia x crocosmiiflora
When to plant crocosmia
Plant crocosmia corms in spring once the danger of frost has passed, at the same time you would plant dahlias or begonias (Washington State University). In its hardy zones crocosmia stays in the ground; lift and divide congested clumps in spring just before growth starts.
Crocosmia is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.
Growing conditions
- Lifecycle
- Perennial
- Spacing
- 6 to 8 in apart
- Planting depth
- 3 in
- Sun
- Full sun
Common problems
- spider mites
- failure to bloom
Sources
- NC State Extension Gardener Plant Toolbox: Crocosmia x crocosmiiflora (Common Montbretia, Crocosmia, Montbretia)
- Washington State University Clark County Extension, Clark County Master Gardeners: African Bulbs (part three): Crocosmia (Garden Mastery Tips)
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