Primula flaccida (Siberian primrose)

Botanical name

Primula flaccida

Other names

Primula nutans, Siberian primrose

Genus

Primula Primula

Species

P. flaccida - P. flaccida is a rosette-forming, short-lived, deciduous perennial with ovate to narrowly elliptic, downy, toothed, pale to mid-green leaves and erect, white-mealy stems bearing conical umbels of pendent, tubular to funnel-shaped, violet to lavender-blue flowers in summer.

Native to

China

Foliage

Deciduous

Fragrance

Flowers are fragrant.

Habit

Erect flower stem, Rosette

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Colour

Flower

Violet in Summer

Foliage

Light green in Spring; Light green in Summer; Light green in Autumn

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How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite , Leaf and bud eelworms , Leaf-mining sawflies , Slugs , Vine weevil

Specific diseases

Grey mould , Leaf spot

General care

Pruning

Cut back after flowering.

Propagation methods

Basal cuttings, Seed

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Monthly care advice

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Where to grow

Primula flaccida (Siberian primrose) will reach a height of 0.5m and a spread of 0.3m after 2-5 years.

Suggested uses

Beds and borders, Cottage/Informal, Low Maintenance, Rock, Underplanting, Wildlife, Woodland

Cultivation

Grow in moist but sharply drained, acid soil in partial or deep shade. Alternatively, grow in an alpine house or frame in a mix of equal parts loam-based compost, peat or leaf mould, and grit.

Soil type

Loamy

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade, Full Shade

Aspect

North, South, East, West

Exposure

Sheltered

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

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Primula flaccida (Siberian primrose)

Common pest name

Scientific pest name

Plantago asiatica mosaic virus

Type

Virus or Viroid

Current status in UK

Unknown

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

5

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

3

General biosecurity comments

Pest risk analysis suggested potential economic impacts would be small; and management by industry would be appropriate. Industry may wish to monitor for the presence of the pest and the Dutch industry certification scheme is of added benefit to the UK.

Defra's Risk register #2

Plant name

Primula flaccida (Siberian primrose)

Common pest name

Necrotic spot

Scientific pest name

Impatiens necrotic spot virus

Type

Virus or Viroid

Current status in UK

Present (Widespread)

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

2

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

3

General biosecurity comments

Pest of mainly ornamentals and vegetables; present in the UK; and covered by the EU listing of Tomato Spotted Wilt Virus. To be kept under consideration in light of a review of the EU listing.

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/