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How to Grow Leucospermum

Leucospermum cordifolium

Perennial

Leucospermum is a South African fynbos shrub prized for its spectacular pincushion-shaped flower heads in orange, red, and yellow. Plant in full sun with excellent drainage in acidic, low-phosphorus soil. Never use phosphorus-rich fertilisers. Water deeply but infrequently, allowing the soil to dry between waterings. Prune immediately after flowering, cutting back to healthy foliage but never into old bare wood. In cold or humid climates, grow in containers with a free-draining mix of bark, grit, and acidic compost. Protect from frost below -5C and from wet, cold winds.

Yearly Lifecycle

|
Jan
Dormancy
Feb
Bud Break
Mar
Growing
Apr
Flowering
May
Flowering
Jun
Flowering
Jul
Flowering
Aug
Growing
Sept
Growing
Oct
Growing
Nov
Growing
Dec
Dormancy

Care Essentials

Avoid phosphorus-rich fertilisers which are toxic to Proteaceae. Use a low-phosphorus native plant feed in spring, or no feed at all in reasonably fertile soil.

Watch For

  • Phytophthora root rot (in wet soil)
  • Scale insects
  • Leaf miners

Companions

Protea, Erica, Restio, Agapanthus

Pet Safety

Cats: Non-toxic
Dogs: Non-toxic
Source

Care Requirements

Light

Full sun essential

Requires full sun for healthy growth and flowering. At least 6 hours of direct sunlight daily. Good air circulation is equally important.

Watering

Deep but infrequent, let soil dry

Water deeply every 10-14 days during active growth. Allow soil to dry completely between waterings. Avoid wetting the foliage. Reduce in winter.

Fertilizing

No phosphorus, minimal or none

Avoid phosphorus-rich fertilisers which are toxic to Proteaceae. Use a low-phosphorus native plant feed sparingly in spring, or no feed at all in reasonably fertile soil.

Pruning

Prune immediately after flowering

Cut flowered stems back to just above a set of healthy leaves immediately after blooming. This maintains compact shape and promotes next season's flowers. Never cut into old bare wood.