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Leah Rottke
Program Coordinator
Email: leah.rottke@gcccd.edu
Phone: 619-660-4261

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Grevillea robusta


Silk Oak

Grevillea robusta2 Grevillea robusta -Leaf Grevillea_robusta_2__4-11-00_small Grevillea robusta -Bloom2
Family: Proteacea - Protea
Plant Type:
[ X ] Tree [ ] Shrub [ ] Vine
Average Maximum Height:
Large :
[ X ] Tree over 75 ft.
[ ] Shrub over 10 ft.
Medium : [ ] Tree 25 - 75 ft.
[ ] Shrub 4 - 10 ft.
Small : [ ] Tree under 25 ft.
[ ] Shrub under 4 ft.
Spread:
[ ] Wide : Wider than it is tall
[ ] Medium : From 1/2 height to equal the height
[ X ] Narrow : Less than 1/2 the height
Grevillea_robusta_3-6-00
Foliage: [ ] Deciduous to [ ] Semi-deciduous [ X ] Evergreen

Exposure:
[ X ] Full Sun [ ] Partial Shade [ ] Full Shade

Ornamental Flowers:
[ X ] Yes [ ] No

Flower Color: (If yes on #8 above)
[ ] Red, Rose, Pink
[ X ] Yellow, Orange, Golden [ ] White, Cream
[ ] Blue, Lavender, Violet [ ] Other

Primary Time of Bloom (If yes on #8 above)
[ ] Winter
[ X ] Spring [ ] Summer [ ] Fall

Ornamental Fruit: [ ] Yes [ X ] No

Cold Hardy: [ ] 30 deg. F [ X ] 20 deg. F [ ] 10 deg. F
[ ] 0 deg. F [ ] Below 0 deg. F

Drought Tolerance:
[ X ] Very - Class 1 [ ] Somewhat - Class 2
[ ] Average - Class 3 [ ] Poor Tolerance - Class 4

Comments: [ ] Fall foliage Color [ ] Coastal Tolerance [ ] Edible Fruit [ ] Poisonous
[ ] Other

Additional Notes:

Last Updated: 10/21/2014

Contact

Leah Rottke
Program Coordinator
Email: leah.rottke@gcccd.edu
Phone: 619-660-4261

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  • Grossmont
  • Cuyamaca
A Member of the Grossmont-Cuyamaca Community College District