Verbena hastata 'White Spires' (Vervain 'White Spires')

Botanical name

Verbena hastata 'White Spires'

Other names

Vervain 'White Spires'

Genus

Verbena Verbena

Variety or Cultivar

'White Spires' _ 'White Spires' is an upright, clump-forming, herbaceous perennial with lance-shaped, pointed, toothed, mid- to dark green leaves and sturdy, branching stems bearing stiff panicles of white flowers from early summer to early autumn.

Foliage

Deciduous

Habit

Branching, Clump-forming, Upright

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Colour

Flower

White in Summer; White in Autumn

Foliage

Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn

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How to care

Watch out for

Pests

Generally pest free

Diseases

Generally disease free

General care

Pruning

Cut down once flowering is finished.

Propagation methods

Seed

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Monthly care advice

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Where to grow

Verbena hastata 'White Spires' (Vervain 'White Spires') will reach a height of 1.5m and a spread of 0.6m after 2-5 years.

Suggested uses

Prairie planting, Beds and borders, Gravel

Cultivation

Grow in moist, well-drained, moderately fertile soil in full sun. In cold areas, protect with a dry winter mulch.

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

Full Sun

Aspect

South, West

Exposure

Exposed

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, Zone 4, Zone 3

Defra's Risk register #1

Plant name

Verbena hastata 'White Spires' (Vervain 'White Spires')

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.

Defra's Risk register #2

Plant name

Verbena hastata 'White Spires' (Vervain 'White Spires')

Common pest name

Scientific pest name

Phytophthora tentaculata Kröber & Marwitz - All Hosts

Type

Oomycete

Current status in UK

Absent

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

Polyphagous pathogen present in parts of Europe and beyond.

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/