Overview
Hibiscus x rosa-sinensis 'Adonicus Red' is a bushy shrubs in the genus Hibiscus, part of the Malvaceae family, with deciduous foliage. Hibiscus x rosa-sinensis 'Adonicus Red' 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 x rosa-sinensis 'Adonicus Red' is a deciduous shrub cultivar within the Hibiscus genus, known for its bushy habit. This plant thrives in full sun on a south-facing, sheltered aspect, preferring fertile, moist but well-drained loam with a neutral pH. It flowers in spring and summer, producing large, funnel-shaped blooms typical of Hibiscus species. Hardy to UK zone H5, it is suitable for shrub borders, specimen planting, and hedging, and can be propagated by semi-hardwood cuttings.
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 x rosa-sinensis 'Adonicus Red' 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 x rosa-sinensis 'Adonicus Red'
- Propagation
- Semi-hardwood cuttings
- Pest resistance
- Aphids, scale insects, mealybugs, glasshouse whitefly
- Disease resistance
- Honey fungus, powdery mildews
Frequently asked questions
Where is the best place to plant Hibiscus x rosa-sinensis 'Adonicus Red'?
Hibiscus x rosa-sinensis 'Adonicus Red' prefers full sun. It suits sheltered positions.
What soil does Hibiscus x rosa-sinensis 'Adonicus Red' need?
Hibiscus x rosa-sinensis 'Adonicus Red' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Hibiscus x rosa-sinensis 'Adonicus Red' hardy in the UK?
Hibiscus x rosa-sinensis 'Adonicus Red' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Hibiscus x rosa-sinensis 'Adonicus Red'?
Semi-hardwood cuttings.
More in the Hibiscus genus
- Hibiscus 'Copenhagen'
- Hibiscus 'Mahogany Splendor'

- Hibiscus acetosella 'Haight Ashbury'

- Hibiscus acetosella 'Red Shield'

- Hibiscus arnottianus

- Hibiscus calyphyllusRock's hibiscus

- Hibiscus clayi
- Hibiscus coccineusAmerican scarlet rose mallow
