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

Mentha longifolia Buddleia Mint Group

horse mint buddleia mint group

A vigorous, creeping, perennial herb with hairy stems that bear aromatic, oblong, toothed, silvery grey-green leaves. Dense spikes of whorled, tubular white or pale purple flowers appear in summer. Attractive and unusual while edible and useful, suitable for container growing or open soil site

Synonyms
Mentha longifolia 'Buddleia'

Join the RHS

Become an RHS Member today and save 30% on your first year

Join now
Buy this plant
Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Purple White Green Grey Silver
Autumn Green Grey Silver
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or North–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Deciduous
Habit
Spreading branched
Genus

Mentha are aromatic, rhizomatous perennials with opposite, toothed leaves and small tubular flowers in spikes of whorls in summer

Name status

Accepted

How to grow

Cultivation

Grow in moist but well drained soil in full or partial sun. May have the potential to become a nuisance; restrict the root run in a deep container and plunge into the ground, or plant in a well chosen site where it can grow unrestricted. See mint cultivation for more information

Propagation

Propagate by seed or division in spring or autumn

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

Cut back to ground level in autumn

Pests

May be susceptible to caterpillars and leafhoppers

Diseases

May be susceptible to mint rust and powdery mildews

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.