Overview

Hibiscus clayi is a bushy shrubs in the genus Hibiscus, part of the Malvaceae family, with deciduous foliage. Hibiscus clayi grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include shrub borders, specimen planting and hedging.

About

Hibiscus clayi, common names red Kauai rosemallow, Clay's hibiscus or Kokiʻo ʻula (Hawaiian name), is a perennial angiosperm of the mallow family Malvaceae. This species has unique leaves that are round and toothed and grow in a decussate pattern. It is native to Oceania, Hawaii and United States. In the garden it prefers full sun and loam soil. In UK gardens it is hardy in most of the UK (RHS H5). Suggested uses include shrub borders, specimen planting and hedging. It tolerates neutral soils, moist but well-drained conditions and south-facing aspects. Plant out after last frost in fertile, well-drained soil.

Wikipedia contributors, CC BY-SA 4.0 — Hibiscus clayi

Growing conditions

Best soil and position for Hibiscus

Sunlight

Full sun

Soil type

Loam

Soil pH

Neutral

Soil moisture

Moist but well-drained

Aspect

South-facing

Exposure

Sheltered

UK hardiness

H5

Plant details

Hibiscus clayi size, habit and characteristics

Plant type

Shrubs

Habit

Bushy

Foliage

Deciduous

Suggested uses

Shrub borders, specimen planting, hedging

Care notes

Pruning and caring for Hibiscus clayi

Propagation

Semi-hardwood cuttings

Pest resistance

Aphids, scale insects, mealybugs, glasshouse whitefly

Disease resistance

Honey fungus, powdery mildews

Frequently asked questions

More in the Hibiscus genus

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  Hibiscus calyphyllusRock's hibiscus
• 
  Hibiscus coccineusAmerican scarlet rose mallow
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  Hibiscus hamabo