Argyranthemum [Madeira Double White] ('Ohmadcama') (Madeira Series) (d)

RHS Plant Profile
marguerite [Madeira Double White]

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marguerite [Madeira Double White] RHS

Synonyms

Argyranthemum 'Ohmadcama', Argyranthemum [Camara], Argyranthemum frutescens 'Ohmadcama'

Shrubs Annual Biennial
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A herbaceous annual with fine-texured leaves and masses of white daisy-like flowers with yellow centres

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
South–facing or East–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)
H2
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Columnar upright
Genus
Argyranthemum are evergreen woody-based perennials or sub-shrubs, with simple or pinnately dissected leaves and white, yellow or pink, daisy-like flower-heads from late spring to autumn
Name Status
Trade

How to Grow

Cultivation

Grow in moderately fertile, well-drained soil in full sun. deadhead regularly to prolong flowering and pinch growing tips to keep compact. Mulching may protect rootstock from frost, and helps to conserve water. Water in prolonged dry spells

Propagation

Grow in moderately fertile, well-drained soil in full sun. Deadhead regularly to prolong flowering and pinch growing tips to keep compact. Mulching may protect rootstock from frost, and helps to conserve water. Water in prolonged dry spells

Suggested planting locations and garden types

  • Patio and container plants
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Flower borders and beds
  • Garden edging
  • Cut flowers

Pruning

deadhead regularly, pruning group 10

Pests

May be susceptible to leaf miners

Diseases

May be susceptible to crown gall