Size
Ultimate height
1.5–2.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Grey Silver Green | |||
---|---|---|---|---|
Summer | Orange Pink | Grey Silver Green | ||
Autumn | Grey Silver Green | |||
Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or East–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Cannaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Canna are rhizomatous herbaceous perennials with erect stems bearing ovate leaves, with showy flowers with showy petal-like staminodes and small, coloured petals and sepals, borne in racemes or panicles in summer and autumn
- Name status
Accepted
How to grow
Cultivation
Grow in a fertile soil in a sheltered site in full sun, planting out once the danger of frosts has passed. See canna cultivation for further information
Propagation
Propagate by division of rhizomes in spring
Suggested planting locations and garden types
- Architectural
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Coastal
- Sub-tropical
- Flower borders and beds
- Bedding
- Conservatory and greenhouse
Pruning
Leave to die back in autumn
Pests
May be susceptible to glasshouse red spider mite, aphids and caterpillars but generally pest free
Diseases
May be susceptible to Canna viruses
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.