Overview
Iberis amara coronaria is a spreading branched herbaceous perennial in the genus Iberis, part of the Brassicaceae family, with evergreen foliage. Iberis amara coronaria grows best in full sun, and tolerates most soils and alkaline and neutral pH. Its UK hardiness is rated H5. Suggested uses include coastal, cottage and informal garden, patio and container plants, rock garden, gravel garden and garden edging.
About
Iberis amara coronaria, commonly known as rocket candytuft, is a herbaceous perennial belonging to the genus Iberis, which includes annuals, evergreen perennials, and sub-shrubs with slender foliage and clusters of white, pink, or purple flowers. This cultivar has a spreading branched habit with evergreen foliage, thriving in full sun and a variety of aspects including south, north, west, and east-facing positions. It prefers fertile, well-drained soils such as chalk, loam, or sand with an alkaline to neutral pH and moist but well-drained conditions. Hardy to UK zone H5, it is suitable for coastal, cottage, rock, gravel gardens, patios, containers, and garden edging, with interest in spring and summer.
Growing conditions
Best soil and position for Iberis
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Iberis amara coronaria size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Spreading branched
- Foliage
- Evergreen
- Suggested uses
- Coastal, Cottage and informal garden, Patio and container plants, Rock garden, Gravel garden, Garden edging
Care notes
Pruning and caring for Iberis amara coronaria
- Propagation
- Seed, Semi-hardwood cuttings
- Pest resistance
- Slugs, Snails, Caterpillars
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Iberis amara coronaria?
Iberis amara coronaria prefers full sun. It suits exposed and sheltered positions.
What soil does Iberis amara coronaria need?
Iberis amara coronaria is adaptable and grows happily in most soil types, including chalk, loam and sand. It prefers alkaline and neutral soil. Aim for soil that stays moist but well-drained.
Is Iberis amara coronaria hardy in the UK?
Iberis amara coronaria 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 Iberis amara coronaria?
Seed, Semi-hardwood cuttings.
More in the Iberis genus
- Iberis aurosica
- Iberis aurosica 'Sweetheart'
- Iberis saxatilisrock candytuft
- Iberis sempervirens 'Nevina'
- Iberis sempervirens 'Plena' (d)
- Iberis sempervirens 'Snowflake'Evergreen Candytuft