Not the plant you're looking for? Search over 300,000 plants
Herbaceous Perennial

Agastache rugosa
  • RHS Plants for pollinators

Korean mint

Clump-forming, herbaceous perennial from 80cm-1.5m in height. The edible leaves have an aniseed flavour and the spikes of purple flowers, produced all summer and into autumn, are very attractive to bees

Other common names
wrinkled giant hyssop
Synonyms
Agastache foeniculum misapplied
Buy this plant
Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Green
Autumn Purple Green
Winter
Position
  • Full sun
Aspect

West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Lamiaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus

Agastache are herbaceous perennials with simple, aromatic leaves and small 2-lipped tubular flowers in whorls forming dense spikes, in summer and autumn; some are rather tender but can be grown as annual bedding

Name status

Correct

Plant range
China, Japan

How to grow

Cultivation

Grow in reasonably well-drained soil in full sun with shelter

Propagation

Propagate by seed or by division in spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Wildlife gardens
  • City and courtyard gardens
  • Flower borders and beds
Pruning

Remove spent flowering spikes through the season

Pests

Generally pest-free

Diseases

May be susceptible to Powdery mildews in dry summers

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.