Leucanthemum graminifolium

RHS Plant Profile
mountain chrysanthemum

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Synonyms

Chrysanthemum graminifolium
Chrysanthemum montanum

Herbaceous Perennial

A clump-forming deciduous perennial with upright stems and a tuft of dark green lance-shaped foliage at the base. Large, white daisy-like flowers with yellow centres appear from May to July

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Leucanthemum are robust herbaceous perennials with narrowly oblong leaves and daisy-like flower-heads with white rays
Name Status
Correct

How to Grow

Cultivation

Position in full sun, in moist but well-drained moderately fertile soil. Divide every 2-3 years to maintain vigour

Propagation

Propagate by division in early spring or late autumn

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Cut flowers
  • Flower borders and beds

Pruning

Dead head regularly, cut stems to ground level when flowering has finished

Pests

May be susceptible to aphids and chrysanthemum eelworm

Diseases

Generally disease-free