Impatiens tinctoria (Perennial impatiens)

Botanical name

Impatiens tinctoria

Other names

Perennial impatiens

Genus

Impatiens Impatiens

Species

I. tinctoria - I. tinctoria is an erect, borderline hardy, tuberous, deciduous to semi-evergreen perennial with whorled, ovate, oblong, or lance-shaped, dark green leaves and, from summer into autumn, racemes of fragrant, spurred, white flowers with red-marked throats.

Foliage

Semi evergreen

Habit

Erect

Toxicity

Regular consumption of large quantities of any part of this plant is toxic.

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Colour

Flower

White in Summer; White in Autumn

Foliage

Dark-green in All seasons

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How to care

Watch out for

Specific pests

Glasshouse red spider mite , Vine weevil , Aphids

Specific diseases

Downy mildew

General care

Propagation

Seeds require a period of cold stratification. Sow in a greenhouse in spring. Self-seeds readily in areas where the minimum temperature in no lower than 15C.

Propagation methods

Seed

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Monthly care advice

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Where to grow

Impatiens tinctoria (Perennial impatiens) will reach a height of 2m and a spread of 1m after 2-5 years.

Suggested uses

Containers, Conservatory, City, Beds and borders, Cottage/Informal, Greenhouse, Wallside and trellises

Cultivation

In warm or frost-free areas, grow in moist but well-drained soil in a sheltered, partially shaded site. Does not tolerate heat or humidity. Protect in winter or overwinter indoors. Grow under glass in loam-based compost in bright filtered light.

Soil type

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

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Exposed, 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

Impatiens tinctoria (Perennial impatiens)

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/