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Grevillea 'Canberra Gem' AGM

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© RHS

Characteristics

Plant type

Conservatory/Greenhouse or Shrub

Habit

Bushy

Toxicity

Resilience

Hardiness

H4 (hardy - average winter)

Colour

Flower

Dark Pink in Spring, Summer and Winter

Foliage

Green in Autumn, Spring, Summer and Winter

Stem

Grey/Silver in

Size

Ultimate height

2.5-4 metres

Ultimate spread

2.5-4 metres

Time to ultimate height

10-20 years


Preferred common name

spider flower 'Canberra Gem'

Family

Proteaceae


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

'Canberra Gem' is a vigorous medium-sized evergreen shrub of rounded habit, with rigid, linear leaves, and bright deep pink flowers in clusters from late winter to late summer

Synonym(s)

  • Grevillea banksii 'Canberra Hybrid'
  • Grevillea rosmarinifolia 'Canberra Gem'
  • Grevillea Canberra hybrid

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, West-facing or East-facing
  • Sheltered

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

Soil

  • Well-drained
  • Acid or Neutral
  • Loam or Sand

Propagation

Propagate by seed, semi-hardwood cuttings or graft

Suggested planting locations and garden types

City/Courtyard Gardens, Flower borders and beds or Wall-side Borders


How to care

Pruning

Pruning group 1 outdoors, but more rigorous pruning may be necessary indoors to restrict size

Pests

Generally pest free

Diseases

Generally disease free