Not the plant you're looking for? Search over 300,000 plants

Herbaceous PerennialConservatory Greenhouse

Canna 'Australia'

canna 'Australia'

Stately, clump-forming perennial to 2m tall, with very large, glossy, dark burnished bronze leaves, and spikes of showy, dark orange-red flowers from midsummer to autumn. A good plant for a tropical border

Save to My plants

Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical 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 sheltered site with full sun and water freely in dry spells; apply a balanced liquid feed monthly. In cold regions, this cultivar is best kept growing in winter in a warm, frost-free greenhouse or conservatory. In areas that are frost-free, leave in situ and protect with a deep dry mulch. 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
Sub-tropical
Bedding
Conservatory and greenhouse
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to glasshouse red spider mite, aphids, slugs and snails

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.