Stachys palustris

RHS Plant Profile
marsh woundwort

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marsh woundwort John Fielding
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Other common names

clown's all-heal, clown's woundwort, marsh betony, ploughman's all-heal, roughweed, all-heal

Plants for pollinators
Herbaceous Perennial
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An upright, herbaceous perennial with square stems, dark green, hairy leaves and tapering spikes of hooded, lipped, pinkish-purple flowers in mid-summer

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 Poorly–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
Yes
Foliage
Deciduous
Habit
Clump forming
Genus
Stachys can be annuals, perennials or shrubs, with paired leaves which are sometimes unpleasantly aromatic, and erect spikes or racemes of whorled, 2-lipped flowers
Name Status
Correct
Plant Range
Europe to Mongolia & Himalayas

How to Grow

Cultivation

Grow in moist or wet soil, ideally in semi-shade

Propagation

Propagate by seed, or by division

Suggested planting locations and garden types

  • Wildlife gardens
  • Wildflower meadow

Pruning

No pruning required; can be cut back in autumn

Pests

Generally pest-free

Diseases

Generally disease-free