Dactylorhiza viridis

RHS Plant Profile
frog orchid

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frog orchid RHS

Synonyms

Orchis virescens Muhl. ex Willd., Habenaria viridis, Orchis viridis, Coeloglossum viride

Herbaceous Perennial Bulbs

A terrestrial orchid to 15cm tall with lance-shaped leaves and flower spikes borne in spring and early summer carrying 5-25 individual green flowers often suffused with red or brown

Position

Partial shade

Soil Types

Chalk, Clay, Loam

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

Position

Partial shade
Aspect
West–facing or North–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

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
Dactylorhiza are deciduous tuberous perennials with lance-shaped leaves sometimes spotted with purple, and dense terminal racemes of purple, pink or white flowers
Name Status
Correct

How to Grow

Cultivation

Grow in moist but well-drained, humus-rich, leafy soil in partial shade

Propagation

By division in early spring

Suggested planting locations and garden types

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

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free