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How to Grow Turk's Cap

Malvaviscus arboreus

Perennial

Turk's Cap thrives in heat and tolerates shade better than most flowering shrubs — ideal for tricky spots under trees or on north-facing walls in warm climates. Plant in well-drained soil, water regularly until established, then it is largely self-sufficient. Cut back hard in late winter to keep it tidy and encourage vigorous flowering shoots. The twisted red blooms attract hummingbirds all summer and autumn.

Yearly Lifecycle

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

Care Essentials

Feed in spring as growth begins with a balanced slow-release fertiliser. A second light feed in midsummer supports the long flowering season.

Watch For

  • Whitefly
  • Spider mites in hot dry weather
  • Scale insects
  • Root rot in waterlogged soil

Companions

Salvia, Lantana, Mexican Sage, Firebush

Care Requirements

Light

Part shade to full sun; tolerates deep shade

Thrives in partial shade to full sun. Uniquely tolerant of deep shade for a flowering shrub — one of very few that blooms reliably under tree canopy. In hotter climates, some afternoon shade reduces water needs.

Watering

Moderate; drought tolerant once established

Water regularly during the first growing season to establish a deep root system. Once established, Turk's Cap is highly drought tolerant and needs little supplemental irrigation except in extreme dry spells.

Fertilizing

Light balanced feed in spring; optional summer top-up

Apply a balanced slow-release fertiliser in spring. A light liquid feed in midsummer can extend the flowering season but is not essential on fertile soils.

Pruning

Hard prune to 30 cm in late winter

Cut all stems back hard to about 30 cm from the ground in late winter before growth resumes. This annual prune keeps the plant tidy, prevents it becoming woody and leggy, and stimulates the most vigorous flowering shoots.