Protea 'Clark's Red'

RHS Plant Profile
protea 'Clark's Red'

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A bushy, evergreen shrub to 1.5m tall, with leathery leaves. In summer it bears solitary, ruby red flowerheads with white hairs at the tips

Position

Full sun

Soil Types

Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1-1.5 metres
Max Height
1-1.5 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Neutral

Position

Full sun
Aspect
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)
H3
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Proteaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Protea are evergreen shrubs or trees, with leathery, simple, entire leaves and dense terminal clusters of tiny 4-petalled flowers, surrounded by large, petal-like bracts
Name Status
Accepted

How to Grow

Cultivation

Under glass grow in a mix of 1 part loam with added charcoal and 3 parts equal measures of grit (or perlite) and peat substitute, in full light. Water moderately in spring and summer. Apply a liquid fertiliser of magnesium sulphate and urea, both at half recommended strength, once in spring and again in early autumn. Water sparingly in winter. Outdoors grow in poor, well-drained soil in full sun

Propagation

Propagate by seed or semi-ripe cuttings

Suggested planting locations and garden types

  • Coastal
  • Mediterranean climate plants
  • Patio and container plants
  • Sub-tropical
  • Conservatory and greenhouse
  • Cut flowers

Pruning

See pruning group 1

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus (rarely)