Petrea volubilis (Purple wreath)

Botanical name

Petrea volubilis

Other names

Purple wreath, Queen's wreath, Sandpaper vine, Sand paper

Genus

Petrea Petrea

Species

P. volubilis - P. volubilis is a tender, vigorous, twining, semi-evergreen climber with branching stems bearing rough, elliptic, dark green leaves, paler beneath, and, from spring into summer, sometimes again in autumn, erect or arching panicles of small, salver-form, purple flowers with prominent, lilac calyxes.

Foliage

Semi evergreen

Habit

Climbing

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Colour

Flower

Purple, Lilac in Spring; Purple, Lilac in Summer

Foliage

Dark-green in All seasons

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How to care

Watch out for

Specific pests

Glasshouse red spider mite , Red spider mite (box and other) , Scale insects

Diseases

Generally disease-free.

General care

Pruning

Pruning group 11 in late winter or early spring. Tends to be smaller in cultivation than in the wild. If grown permanently outdoors, avoid training up a tree.

Propagation methods

Layering, Semi-hardwood cuttings

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Monthly care advice

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Where to grow

Petrea volubilis (Purple wreath) will reach a height of 12m and a spread of 6m after 5-10 years.

Suggested uses

Conservatory, Low Maintenance, Containers, Sub-Tropical, Wallside and trellises

Cultivation

Grow in fertile, moist but well-drained soil in a sheltered position in full sun. In cold areas, grow in a container & overwinter indoors. Provide support. Under glass, grow in loam-based compost in full light. In growth, water moderately & feed monthly.

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), Indoor heated (H1)

USDA zones

Zone 11, Zone 10

Defra's Risk register #1

Plant name

Petrea volubilis (Purple wreath)

Common pest name

grape ground pearl

Scientific pest name

Margarodes vitis

Type

Insect

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)

5

General biosecurity comments

Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.

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/