Overview
Grevillea hilliana is a compact upright shrub to 1.5 m high conservatory greenhouse in the genus Grevillea, part of the Proteaceae family, with evergreen foliage. Grevillea hilliana grows best in full sun, and tolerates well-drained sandy or loamy soil soils and 6.0-7.0 pH. Its UK hardiness is rated H3. Suggested uses include specimen plant and coastal gardens.
About
Grevillea hilliana, commonly known as white silky oak, white yiel yiel, Hill's silky oak and grey oak, is a species of flowering plant in the family Proteaceae and is endemic to eastern Australia. It is a tree with lance-shaped to oblong or lobed adult leaves and cylindrical clusters of large numbers of white to pale green flowers. Grow it in full sun and well-drained sandy or loamy soil soil. In UK gardens it is half-hardy and may need winter protection in colder areas (RHS H3). It works well for specimen plant and coastal gardens. It tolerates 6.0-7.0 soils, well-drained conditions and south-facing aspects. Plant in well-drained soil in sun or partial shade.
Wikipedia contributors, CC BY-SA 4.0 — Grevillea hilliana
About the genus
Grevillea, commonly known as spider flowers, is a genus of about 360 species of evergreen flowering plants in the family Proteaceae. Plants in the genus Grevillea are shrubs, rarely trees, with the leaves arranged alternately along the branches, the flowers zygomorphic, arranged in racemes at the ends of branchlets, and the fruit a follicle that splits down one side only, releasing one or two seeds.
Wikipedia contributors, "Grevillea", CC BY-SA 4.0 — Grevillea
Growing conditions
Best soil and position for Grevillea
- Sunlight
- Full sun
- Soil type
- Well-drained sandy or loamy soil
- Soil pH
- 6.0-7.0
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
Grevillea hilliana size, habit and characteristics
- Plant type
- Conservatory Greenhouse, Shrubs
- Habit
- Compact upright shrub to 1.5 m high
- Foliage
- Evergreen
- Suggested uses
- Specimen plant, coastal gardens
Care notes
Pruning and caring for Grevillea hilliana
- Propagation
- Seed, cuttings
- Pest resistance
- Resistant to most pests
- Disease resistance
- Resistant to most diseases
Frequently asked questions
Where is the best place to plant Grevillea hilliana?
Grevillea hilliana prefers full sun. It suits sheltered positions.
What soil does Grevillea hilliana need?
Grevillea hilliana grows best in well-drained sandy or loamy soil soil. It prefers 6.0-7.0 soil. Aim for soil that stays well-drained.
Is Grevillea hilliana hardy in the UK?
Grevillea hilliana has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.
How do I propagate Grevillea hilliana?
Seed, cuttings.
