Coppertip

Crocosmia

Iridaceae · perennial · introduced

Last updated

Crocosmia (Iridaceae) is a genus of corm-producing perennials from sub-Saharan Africa and Madagascar, reaching 2 to 3 feet tall with erect, clumping growth. Trumpet-shaped flowers on arching spikes bloom from mid-summer to fall in colors ranging from gold and yellow through orange to red. The genus name comes from the Greek for saffron and smell. Over 400 cultivars have been produced.

Crocosmia grows in sun to part shade on moist, well-drained soils (pH 6.0 to 8.0) including high organic matter, loam, and sand, hardy in Zones 6a to 9b. It is semi-hardy, with corms injured below 28 degrees Fahrenheit. Maintenance is low and it attracts hummingbirds, bees, and butterflies. Twospotted spider mites are the primary pest. Some hybrids, especially C. × crocosmiiflora, are invasive in parts of the United Kingdom, Ireland, Australia, New Zealand, and the coastal United States.

Plant Profile

Size & Form

Height
2-3 ft
Spread
0 ft
Growth Rate
Medium

Site Requirements

Light
Sun to Part Shade
Soil Drainage
Moist, Well Drained
Soil pH
6.0-8.0
Water
Moderate
Hardiness
Zones 6a–9b

Ornamental Interest

Bloom Time
summer
Origin
Sudan to S. Africa and Madagascar
Cultivars (1)
'Diablito'
Data Maturity
Structured Multiple sources. Expert review underway.