How to grow Grevillea robusta

Grevillea robusta grow and care – tree of the genus Grevillea also known as Southern silky oak, Grevillea robusta perennial evergreen used as ornamental plant as shade tree or as bonsai, can grow in subtropics, tropics, mediterranean, desert or temperate climate and growing in hardiness zone 9+.

Leaves color green in oval to fork shape.

Grevillea robusta flower

Flower color yellow-orange to brown ,small flowers connected on stems, the flowers grow on stems in inflorescence that create like bottlebrush.

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How to grow Grevillea robusta growing and care:

Well-drained soil

What is the best way to start growing?
Plant / Seed / Vegetative reproduction

Is it necessary to graft or use vegetative reproduction?

Difficulties or problems when growing:

Planting season:
Spring / Summer / Autumn (in warm climate)

Pests and diseases:

Pruning season:
All year round

How to prune:
Just for design

Size of the plant:
5-25 m, 15-80 feet.

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Small amount of water / Average amount of water

Light conditions in optimal condition for growing:
Full Sun / Half shade

Is it possible to grow indoor as houseplant?

Growing is also possible in a planter /flowerpot / containers:

Blooming information

Bloom season:
Spring / Summer

General information about the flower:
Yellow-orange to brown color, small flowers connected on stems, the flowers grow on stems in inflorescence that create like bottlebrush

Scientific name:

Grevillea robusta

Alternative name: Southern silky oak, Silk oak, Silky oak, Silver oak, Australian silver oak

How to grow Grevillea robusta

Grevillea robusta tree

Grevillea robusta

Grevillea robusta flower


Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • Brown flowers
  • Orange flower
  • Yellow flower
  • Desert Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
  • Tropics Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Evergreen
  • Perennial plant
  • Tree
Plant Uses
  • Bonsai
  • Drought tolerant plants
  • Ornamental plants
  • Shade tree
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
Plants sun exposure
  • Full sun Plants
  • Part shade Plants
Watering plants
  • Regularly water
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13
  • Hardiness zone 9

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