Wisteria x formosa 'Caroline' (Wisteria 'Caroline')

Botanical name

Wisteria x formosa 'Caroline'

Other names

Wisteria chinensis 'Caroline', Wisteria 'Caroline', Wisteria sinensis 'Caroline', Chinese wisteria 'Caroline', Wisteria floribunda 'Caroline'

Genus

Wisteria Wisteria

Variety or Cultivar

'Caroline' _ 'Caroline' is a vigorous, deciduous climber with pinnate, mid-green leaves and racemes of fragrant, violet flowers in late spring and early summer followed by hairy, green seed pods in autumn.

Native to

Garden origin

Foliage

Deciduous

Fragrance

Flowers are fragrant.

Habit

Climbing, Spreading

Toxicity

All parts may cause severe discomfort if ingested.

Colour

Flower

Violet in Spring; Violet in Summer

Foliage

Mid-green in Summer; Mid-green in Autumn

How to care

Watch out for

Specific pests

Scale insects

Specific diseases

Leaf spot , Powdery mildew

General care

Propagation methods

Hardwood cuttings, Layering, Softwood cuttings

Monthly care advice

Where to grow

Wisteria x formosa 'Caroline' (Wisteria 'Caroline') will reach a height of 9m and a spread of 5m after 10-20 years.

Suggested uses

Wallside and trellises

Cultivation

Plant in soil that is moist but well-drained.This becomes a very large and long-lived climber so choose the right site when planting. Can be grown informally through a large tree or more formally against a house wall.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

Sheltered

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

Hardy (H4)

USDA zones

Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Wisteria x formosa 'Caroline' (Wisteria 'Caroline')

Common pest name

pink wax scale; red was scale; ruby wax scale

Scientific pest name

Ceroplastes rubens

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

Based on its biology and low potential impact continued action on this pest in the UK would not be considered appropriate. It is likely to be of more concern to southern Member States of the EU; as it is an economic pest of citrus.

Defra's Risk register #2

Plant name

Wisteria x formosa 'Caroline' (Wisteria 'Caroline')

Common pest name

Nematode; common spiral; Spiral nematode; Steiners spiral nematode

Scientific pest name

Helicotylenchus dihystera

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)

3

General biosecurity comments

Nematode pest unlikely to be very damaging in its own right; but used as a an indicator species to assess compliance of soil requirements of imported plants to be kept under review in light of EFSA evaluation of soil requirements.

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/