Pycnanthemum flexuosum

RHS Plant Profile
Appalachian mountain mint
Appalachian mountain mint visionspictures.com
Herbaceous Perennial

An upright, slow-spreading rhizomatous perennial wildflower with oval-shaped, aromatic, toothed green foliage, with faintly red margins, on hairy stems. Clusters of tufted, airy, white to very pale lavender purple flowers appear in the summer followed by seedheads for winter interest

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7
Drought Resistance
Yes

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Name Status
Correct
Plant Range
SE 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
  • Wildlife gardens
  • City and courtyard gardens
  • Low Maintenance
  • Flower borders and beds

Pruning

Cut back fading stems in late autumn, or early spring, unless you wish to keep the seedheads for winter interest

Pests

Generally pest-free

Diseases

Generally disease-free