Celmisia semicordata

RHS Plant Profile
large mountain daisy

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large mountain daisy RHS

Other common names

New Zealand daisy

Synonyms

Celmisia coriacea misapplied

Herbaceous Perennial
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A perennial producing rosettes of leaves 30cm long covered in silky hairs, grey-green above and white below. The white daisy flowers, 8cm across, are carried singly on stems up to 50cm tall

Position

Full sun, Partial shade

Soil Types

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

Loam Sand
Moisture
Moist but well–drained
pH
Acid

Position

Full sun Partial shade
Aspect
North–facing or West–facing or South–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
Asteraceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Celmisia are evergreen mat- or rosette-forming perennials and sub-shrubs. They often have silky, silvery foliage and bear daisy-like flowers which are usually white with yellow centres
Name Status
Correct
Plant Range
New Zealand (S.Island)

How to Grow

Cultivation

Thrives in cool, moist climates. Prefers slightly acid, humus-rich soil

Propagation

Propagate by seed sown in containers in an open frame as soon as ripe, or divide in spring, or root individual rosettes in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Architectural
  • Patio and container plants
  • Rock garden
  • Flower borders and beds
  • Underplanting of roses and shrubs
  • Wall side borders

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free