About
Canna 'Grande' is a robust, rapidly growing perennial that features lush, banana-like leaves edged with deep maroon-red. Its dark-hued stems occasionally bear small orange flowers during the summer through early autumn.
About the genus
Canna are herbaceous perennials characterized by their rhizomatous growth and upright stems. They feature broad, oval leaves and prominent flowers that include petal-like staminodes along with smaller, colored petals and sepals. These blooms appear in clusters, such as racemes or panicles, during the summer and autumn months.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Conservatory Greenhouse, Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 2.5-4 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Architectural, City and courtyard gardens, Cottage and informal garden, Mediterranean climate plants, Patio and container plants
Care notes
- Cultivation
- As a patio plant grow in pots of peat-free compost in a sheltered site in full sun. Plants can also be planted into a sunny border. Water freely and apply a high potassium feed every 2-3 weeks in the growing season. Lift the rhizomes in autumn when frost blackens the foliage. Store over winter in barely moist compost in frost-free conditions. See canna cultivation for further information
- Pruning
- Leave to die back in autumn, deadhead flowers to prolong flowering
- Propagation
- Propagate by division of rhizomes in spring
- Pest resistance
- May be susceptible to caterpillars, glasshouse red spider mite and aphids
- Disease resistance
- May be susceptible to canna viruses