Crocosmia × crocosmiiflora 'Columbus'
montbretia 'Columbus'
A cormous, herbaceous perennial up to 1m tall when in flower. It has mid-green, blade-like leaves and arching flower stems that bear vibrant, orange-yellow tubular flowers that have a paler orange-yellow throat and an interesting red ring in the centre. The flowers emerge from attractive and unique, reddish-purple flower buds that extend the season of interest from mid to late summer.
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Orange Yellow Red Purple | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing or East–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Iridaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Crocosmia are deciduous cormous perennials with erect, sword-shaped leaves and branched spikes of showy, funnel-shaped flowers in summer
- Name status
Accepted
How to grow
Cultivation
This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND AND WALES. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information
Propagation
Please see cultivation notes
Suggested planting locations and garden types
Pests
May be susceptible to glasshouse red spider mite
Diseases
Generally disease-free
Get involved
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