Overview
Calothamnus quadrifidus is a plant with a upright, bushy habit in the genus Calothamnus, part of the Myrtaceae family, with evergreen, needle-like leaves foliage. Calothamnus quadrifidus grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include specimen plant, coastal gardens and low-maintenance landscapes.
About
Calothamnus quadrifidus, commonly known as one-sided bottlebrush, is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. The common name alludes to the arrangement of the flowers in the inflorescence which line up on one side of the stem. It is a shrub with grey-green, pine-like foliage covered with soft hairs and red, four-part flowers in spring. Widely cultivated because of its attractive foliage, colourful, unusual and prolific flowers, it grows in a variety of habitats and soils. 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 specimen plant, coastal gardens and low-maintenance landscapes. It tolerates neutral soils, well-drained conditions and south-facing aspects. Plant in well-drained soil in a suitable position. Water during establishment.
Wikipedia contributors, CC BY-SA 4.0 — Calothamnus quadrifidus
Growing conditions
Best soil and position for Calothamnus
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Calothamnus quadrifidus size, habit and characteristics
- Habit
- Upright, Bushy
- Foliage
- Evergreen, Needle-like leaves
- Suggested uses
- Specimen plant, Coastal gardens, Low-maintenance landscapes
Care notes
Pruning and caring for Calothamnus quadrifidus
- Propagation
- Seed, Semi-hardwood cuttings
- Pest resistance
- Resistant to most pests
- Disease resistance
- Resistant to most diseases
Frequently asked questions
Where is the best place to plant Calothamnus quadrifidus?
Calothamnus quadrifidus prefers full sun. It suits sheltered positions.
What soil does Calothamnus quadrifidus need?
Calothamnus quadrifidus grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Calothamnus quadrifidus hardy in the UK?
Calothamnus quadrifidus 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 Calothamnus quadrifidus?
Seed, Semi-hardwood cuttings.
