Roscoea purpurea 'Vannin' (Purple roscoea 'Vannin')

Botanical name

Roscoea purpurea 'Vannin'

Other names

Purple roscoea 'Vannin'

Genus

Roscoea Roscoea

Variety or Cultivar

'Vannin' _ 'Vannin' is an erect, tuberous perennial with dark reddish-brown stems bearing stem-clasping, strap-shaped, dark green leaves and, from midsummer into autumn, orchid-like flowers with violet lower petals and white to pale violet upper petals.

Native to

Garden origin

Foliage

Deciduous

Habit

Erect

---

Colour

Flower

Violet in Summer; Violet in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer

---

How to care

Watch out for

Specific pests

Slugs , Vine weevil

Specific diseases

Virus

General care

Pruning

Remove faded flowers and allow the plant to die down naturally. Divide tubers every 3-4 years in early spring to maintain vigour.

Propagation

Sow seed in containers in a cold frame as soon as ripe. Divide tubers in spring when growth resumes.

Propagation methods

Division, Seed

---

Monthly care advice

---

Where to grow

Roscoea purpurea 'Vannin' (Purple roscoea 'Vannin') will reach a height of 1m and a spread of 0.3m after 2-5 years.

Suggested uses

Woodland, Underplanting, Rock, Cottage/Informal, Beds and borders

Cultivation

Plant tubers 15cm deep in winter or early spring in moderately fertile, preferably neutral, moist but well-drained soil in a sheltered, partially-shaded site. Apply a deep winter mulch in frost-prone areas. Dislikes hot, humid summers & wet winters.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

East, West

Exposure

Sheltered

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

Hardy (H4), Tender in frost (H3)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6

Defra's Risk register #1

Plant name

Roscoea purpurea 'Vannin' (Purple roscoea 'Vannin')

Common pest name

tomato thrips

Scientific pest name

Ceratothripoides brunneus

Type

Insect

Current status in UK

Absent

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

3

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

3

General biosecurity comments

Thrips present in Africa; the Caribbean and parts of Asia; frequently intercepted in the UK. Can cause significant damage to tomatoes and other crops in countries where it is present. Europe wide PRA will consider its potential to establish and cause damage.

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/