Canna indica (Canna)

Botanical name

Canna indica

Other names

Canna, Indian shot, Arrowroot, Achira, Flowering reed, Flowering shot, Indian reed, Queensland, Tous-les-mois, Canna edulis

Genus

Canna Canna

Species

C. indica - C. indica is a tender, erect, rhizomatous perennial with large, ovate, lance-shaped, or oblong, dark green leaves, often flushed bronze, and racemes or panicles of iris-like red or orange flowers from midsummer into autumn.

Foliage

Deciduous

Habit

Erect

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Colour

Flower

Orange-red, Red in Summer; Red, Orange-red in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn

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How to care

Watch out for

Specific pests

Aphids , Caterpillars , Glasshouse red spider mite , Slugs

Specific diseases

Canna viruses

General care

Pruning

Allow leaves to die back completely before removing in autumn.

Propagation methods

Division, Seed

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Monthly care advice

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Where to grow

Canna indica (Canna) will reach a height of 2.2m and a spread of 0.5m after 2-5 years.

Suggested uses

Coastal, City, Beds and borders, Architectural, Containers, Cottage/Informal, Sub-Tropical

Cultivation

Plant in a sheltered, warm site in full sun. Water often. May not flower in areas with short growing seasons. In autumn, lift and store rhizomes in a frost-free place or, in mild gardens, leave them in the ground and protect with dry mulch.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Tender in frost (H3)

USDA zones

Zone 11, Zone 10, Zone 9, Zone 8, Zone 7

Defra's Risk register #1

Plant name

Canna indica (Canna)

Common pest name

Scientific pest name

Xiphinema californicum

Type

Nematode

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

EU regulated nematode pest with the potential to introduce non-European viruses. EU listing and regulations on soil/growing material associated with planting material help to mitigate the risk of entry.

Defra's Risk register #2

Plant name

Canna indica (Canna)

Common pest name

Scientific pest name

Canna yellow mottle virus

Type

Virus or Viroid

Current status in UK

Present (Unknown Distribution)

Likelihood to spread in UK (1 is very low - 5 is very high)

1

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Previously recorded damage but no evidence to suggest it hasn't been well controlled by industry practice.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/