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Herbaceous Perennial

Pycnanthemum muticum

short-toothed mountain mint

An aromatic, herbaceous perennial to about 90cm with bright green, velvety leaves arranged in pairs. The very pale pink flowers with silvery bracts cluster in flattened whorls at the top of the stem in late summer

Other common names
big leaf mountain mint
clustered mountain mint

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

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

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H7
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Name status

Correct

Plant range
E USA

How to grow

Cultivation

Grow in any well-drained soil in sun or partial shade

Propagation

Propagate by seed, or by division in spring

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

Cut back fading stems in late autumn, or early spring

Pests

Generally pest-free

Diseases

Generally disease-free

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