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Canna warscewiczii (Red canna)

Advanced
skill rating
2 hours care
per year
1.8m
Max height
1m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Canna warscewiczii

Other names

Red canna, Canna indica var. warscewiczii, Indian shot, Canna lily

Genus

Canna Canna

Species

C. warscewiczii - C. warscewiczii is an erect, rhizomatous perennial bearing large, banana-like, glossy, purple-flushed, mid-green to light grey-green leaves and dark, sturdy stems bearing racemes of scarlet flowers from midsummer into autumn.


Canna warscewiczii is: Deciduous

Habit

Erect

Flower

Scarlet in Summer; Scarlet in Autumn

Foliage

Flushed purple, Grey-green in Spring; Flushed purple, Grey-green in Summer; Grey-green, Flushed purple in Autumn

How to care

Watch out for

Specific pests

Aphids , Caterpillars , Glasshouse red spider mite , Slugs Aphids , Caterpillars , Glasshouse red spider mite , Slugs

Canna viruses Canna viruses

General care

Pruning

Leave to die back in autumn.

Propagation

Sow seed under glass at 20-25C in spring. Chip or scarify seed and soak in warm water for 24-48 hours before sowing. Slow to germinate, approximately 21-60 days.

Propagation methods

Division, Seed


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Where to grow

Canna warscewiczii (Red canna) will reach a height of 1.8m and a spread of 1m after 2-5 years.

Suggested uses

City, Beds and borders, Sub-Tropical, Conservatory

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 but cover 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.

Indoor unheated (H2), Tender in frost (H3)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Canna warscewiczii

Other names

Red canna, Canna indica var. warscewiczii, Indian shot, Canna lily

Genus

Canna Canna

Species

C. warscewiczii - C. warscewiczii is an erect, rhizomatous perennial bearing large, banana-like, glossy, purple-flushed, mid-green to light grey-green leaves and dark, sturdy stems bearing racemes of scarlet flowers from midsummer into autumn.

Native to

South America

Foliage

Deciduous

Habit

Erect


Colour

Flower

Scarlet in Summer; Scarlet in Autumn

Foliage

Flushed purple, Grey-green in Spring; Flushed purple, Grey-green in Summer; Grey-green, Flushed purple in Autumn


How to care

Watch out for

Specific pests

Aphids , Caterpillars , Glasshouse red spider mite , Slugs

Specific diseases

Canna viruses

General care

Pruning

Leave to die back in autumn.

Propagation

Sow seed under glass at 20-25C in spring. Chip or scarify seed and soak in warm water for 24-48 hours before sowing. Slow to germinate, approximately 21-60 days.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Canna warscewiczii (Red canna) will reach a height of 1.8m and a spread of 1m after 2-5 years.

Suggested uses

City, Beds and borders, Sub-Tropical, Conservatory

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 but cover 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.

Indoor unheated (H2), Tender in frost (H3)

USDA zones

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

Defra's Risk register #1

Plant name

Canna warscewiczii (Red 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 warscewiczii (Red 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: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Indoor unheated (H2), Tender in frost (H3) Tell us...

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