Orchis militaris

RHS Plant Profile
military orchid
military orchid RHS

Other common names

soldier orchid

Herbaceous Perennial

A terrestrial orchid with oval to oblong leaves forming a basal rosette and sturdy stems up to around 50cm tall bearing 10-40 flowers forming a dense pinkish to reddish-purple cylinder. Individual flowers are characterised by a 'helmet' of pink-flushed sepals, a whitish 'body' with crimson hairs and lobes forming 'arms' and 'legs'

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
West–facing or East–facing or South–facing
Exposure
Exposed or Sheltered
Hardiness
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Orchidaceae
Native to GB/Ireland
Yes
Foliage
Deciduous
Habit
Columnar upright
Genus
Orchis are tuberous, terrestrial orchids with rosettes of light to dark green leaves, sometimes purple-spotted, and dense, upright spikes of delicate, purple, red, pink, green, yellow or white flowers
Name Status
Correct

How to Grow

Cultivation

Grow in a moist but well-drained, alkaline soil in full sun or partial shade

Propagation

Propagate by seed

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Wildflower meadow
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free