Agastache rugosa 'Little Adder' (Korean mint 'Little Adder')

Botanical name

Agastache rugosa 'Little Adder'

Other names

Korean mint 'Little Adder', Wrinkled giant hyssop 'Little Adder'

Genus

Agastache Agastache

Variety or Cultivar

'Little Adder' _ 'Little Adder' is a compact, mound-forming, deciduous perennial with upright stems bearing aromatic, lance-shaped, mid- to dark green leaves and erect spikes of tubular, lavender flowers from midsummer into autumn.

Native to

Garden origin

Foliage

Deciduous

Fragrance

Aromatic leaves, aniseed, attractive to butterflies

Habit

Compact, Cushion or Mound Forming, Upright

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Colour

Flower

Lavender in Summer; Lavender in Autumn

Foliage

Yellow-green, Yellow in Spring; Yellow, Yellow-green in Autumn

General care

Pruning

Deadhead to prolong flowering. Remove faded flower-stems in autumn or leave to provide winter interest. In cold areas, cut back in early spring.

Propagation methods

Division, Seed, Semi-ripe cuttings

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Monthly care advice

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Where to grow

Agastache rugosa 'Little Adder' (Korean mint 'Little Adder') will reach a height of 0.45m and a spread of 0.55m after 1-2 years.

Suggested uses

Bees (attract & feed bees), Beds and borders, City, Cottage/Informal, Garden edging, Gravel, Ground Cover

Cultivation

Plant in fertile, well-drained soil in full sun. Dislikes heavy clay.

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

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

Hardy (H4), Tender in frost (H3)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Agastache rugosa 'Little Adder' (Korean mint 'Little Adder')

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/