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Canna ‘Australis’ ( Canna ) : des fleurs de canna rouges au-dessus d’un feuillage sombre. Le visuel Florissa présente la plante et son nom dans la partie inférieure de l’étiquette. La photographie occupe presque toute la surface, tandis que le bandeau du bas rassemble les indications du produit. Cette vue permet de reconnaître son apparence et de distinguer la variété présentée.
Rhizome Cannaceae

Canna 'Australis' (1 rhizome)

Canna × generalis ‘Australis’

Canna ‘Australis’ produces spectacular deep purple, almost black foliage topped with vibrant red-orange flowers. Its bold tropical form adds dramatic contrast to summer gardens.
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Detailed plant guide
Advice adapted to Canada
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Quantity
1 rhizome
Exposure
Full sun
Life cycle
Perennial
Hardiness
Zone 10

Discover the plant

Common nameCanna Lily
FamilyCannaceae
GenusCannabis
TypeRhizome
Botanical nameCanna × generalis ‘Australis’

Australis Canna Lily (Canna × generalis ‘Australis’) is a spectacular rhizomatous perennial valued as much for its dramatic foliage as for its vibrant flowers. Also known as Canna Australis, this striking variety produces broad, glossy leaves in a deep purple-brown shade that appears almost chocolate-black. Its bold, sculptural form can reach approximately 150 cm (5 ft) in height. From July to September, brilliant red-orange flowers rise above sturdy stems, creating a striking contrast against the dark foliage. This combination of colour brings warmth, depth, and tropical character to summer landscapes. Hardy only to Zone 10, it must be protected from frost in Quebec.

Plant the rhizomes in spring after all danger of frost has passed and the soil has warmed thoroughly. Position them horizontally, approximately 10 cm (4 in) deep, and space them 40 to 50 cm (16 to 20 in) apart. Choose a location in full sun with rich, fertile, organic, evenly moist, and well-drained soil. Water generously throughout the growing season to maintain consistent moisture without allowing standing water. Regular applications of compost and a balanced fertilizer every two weeks encourage vigorous growth and abundant flowering. Proper care of Canna Australis also includes lifting the rhizomes before the first frost and storing them in a cool, dry place over winter.

Canna Australis is ideal for creating a dramatic focal point in tropical flower beds, large containers, patios, and contemporary gardens. For container growing, choose a pot at least 45 cm (18 in) in diameter and maintain generous, consistent watering. Its nearly black foliage pairs beautifully with caladiums, alocasias, coleus, dahlias, and ornamental grasses to create lush, high-contrast displays. The summer flowers attract a variety of pollinators and may also be used in selected floral arrangements. However, they are grown exclusively for ornamental purposes and are not intended for consumption.

Canna ‘Australis’ ( Canna ) : des fleurs de canna rouges au-dessus d’un feuillage sombre. Le visuel Florissa présente la plante et son nom dans la partie inférieure de l’étiquette. La photographie occupe presque toute la surface, tandis que le bandeau du bas rassemble les indications du produit. Cette vue permet de reconnaître son apparence et de distinguer la variété présentée.

Planting guide

Plant well.Grow beautifully.

Planting depth

10 cm (4 in)

Best planting time

Spring

Propagation

Propagate by dividing the rhizomes in spring once they have several growing buds. This ensures plants remain true to the variety.

Growing method

Plant the rhizomes in spring after all danger of frost has passed, approximately 10 cm (4 in) deep in rich, fertile, well-drained soil. Position the rhizome horizontally before covering it with soil. Space plants 40 to 50 cm (16 to 20 in) apart. Choose a location in full sun. Water thoroughly after planting, then keep the soil consistently moist throughout the growing season. Lift the rhizomes before the first frost and store them in a dry place until spring.

Soil and care

The right care,at the right time.

Soil pH

Neutral to slightly acidic

Minimum temperature

5°C (41°F)

Care level

Easy

Watering

Water generously throughout the growing season to keep the soil consistently moist without allowing standing water.

Soil type

Rich in organic matter, fertile, evenly moist, and perfectly drained soil.

Fertilization

Apply a balanced fertilizer every two weeks during the growing season. Regular applications of compost also improve plant vigour and flowering.

Seasonal care

Remove spent flowers regularly to extend blooming. Keep the soil consistently moist throughout the growing season. Feed every two weeks with a balanced fertilizer. Lift the rhizomes before the first frost and store them in a dry place.

Container growing

A garden,within reach.

Recommended pot size

45 cm (18 in)
Container gardening requires planning for the necessary volume for the roots and the plant's final height. Choose a stable pot with drainage holes and a suitable growing medium. Leave enough space to respect the recommended depth and spacing, rather than crowding plants to immediately fill the pot. Place the container in the indicated exposure and regularly check for moisture, especially in hot or windy weather. A pot is more exposed to temperature variations than planting directly in the ground. Therefore, plan for a winter storage location compatible with the plant's needs and your region's climate right from the start. Plant canna rhizomes in spring in warmed soil, after the last frost. Choose a sunny, sheltered location away from winds that could tear the large leaves. Prepare fertile, loose soil so that the roots can develop around the rhizome, then place the buds facing upwards. Water after planting and monitor moisture during the initial growth phase. Once the leaves have developed, watering should be adjusted according to growth and weather. For container growing, choose a volume suited to the mature plant and keep the drainage holes clear, without letting the roots dry out completely between waterings. In winter, protect the container according to the plant's needs: its roots are more exposed to cold than when planted in the ground.
Canna ‘Australis’ ( Canna ) : des fleurs de canna rouges au-dessus d’un feuillage sombre. Le visuel Florissa présente la plante et son nom dans la partie inférieure de l’étiquette. La photographie occupe presque toute la surface, tandis que le bandeau du bas rassemble les indications du produit. Cette vue permet de reconnaître son apparence et de distinguer la variété présentée.

Bloom and dimensions

Its place,in your garden.

Mature height

150 cm (60 in)

Width / spread

40 to 50 cm (16 to 20 in)

Flower color

Red-orange

Foliage color

Deep purple, almost chocolate-black

Foliage type

Deciduous

Growth rate

Fast

Bloom period

Brilliant red-orange flowers bloom abundantly from mid-summer until the first frost, attracting a variety of pollinators.
Canna ‘Australis’ ( Canna ) : des fleurs de canna rouges au-dessus d’un feuillage sombre. Le visuel Florissa présente la plante et son nom dans la partie inférieure de l’étiquette. La photographie occupe presque toute la surface, tandis que le bandeau du bas rassemble les indications du produit. Cette vue permet de reconnaître son apparence et de distinguer la variété présentée.

Garden associations

In goodcompany.

Companion plants

Caladiums, dahlias, ornamental grasses, coleus, and alocasias make excellent companion plants.

Frequently asked questions

Your questions,answered.

When should Canna ‘Australis’ be planted?
Plant the rhizomes in spring after all danger of frost has passed. Warm soil encourages rapid growth and abundant flowering.
Can this canna be grown in containers?
Yes. This variety grows exceptionally well in large containers with rich soil and consistent watering. Container growing also makes overwintering the rhizomes much easier.
Why should the rhizomes be lifted in autumn?
This variety is not hardy in cold climates. The rhizomes should be stored in a cool, dry place until the following spring.
How can I encourage abundant flowering?
Provide generous watering, fertilize regularly, remove spent flowers, and grow the plant in full sun for maximum flowering.
Is the foliage ornamental?
Yes. Its deep purple, almost black foliage remains spectacular all season and is just as impressive as the flowers.

Wildlife and pets

Life,around your plants.

Supporting wildlife

Pollinators

For planting your bulbs

The right extras.Right here.

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