Grevillea rosmarinifolia 'Williamsi'
rosemary grevillea
An evergreen shrub of loose, spreading, graceful habit, to 2m in mild districts, maybe only to 1m in British gardens. Leaves are rosemary-like, rigid, linear, dark green, to 5cm long and often have prickly tips. Flowers are typically deep rose-red, borne in dense terminal clusters from late winter through to late summer
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Size
Ultimate height
1.5–2.5 metresTime to ultimate height
10–20 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Pink Red | Green | ||
|---|---|---|---|---|
| Summer | Pink Red | Green | ||
| Autumn | Green | |||
| Winter | Pink Red | Green |
Position
- Full sun
Aspect
West–facing or East–facing or South–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Proteaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Potentially harmful
- Skin irritant/allergen. Wear gloves and other protective equipment when handling Pets: Skin irritant/allergen. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Grevillea can be evergreen shrubs or trees, with alternate, simple or pinnately divided leaves and petal-less flowers consisting of a colourful calyx tube with protruding style, borne in racemes or panicles
- Name status
Correct
- Plant range
- SE Australia
How to grow
Cultivation
Grow outdoors in acid to neutral well-drained soil. Grow under glass in lime-free compost with added grit in fill light. May need restrictive pruning under glass
Propagation
Propagate by seed, semi-hardwood cuttings or graft
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Mediterranean climate plants
- Flower borders and beds
- Wall side borders
Pruning
Pruning group 1 outdoors, but more rigorous pruning may be necessary indoors to restrict size
Pests
Generally pest-free
Diseases
May be susceptible to honey fungus (rarely)
Get involved
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