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| Identification |
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Genus
Grevillea
Species
robusta
Variety
Cultivar
Common names
silkoak
grevillea
Family
PROTEACEAE
Specimen number
S11344
Data source
HtZn p121
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| Life cycle |
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Life form
Terrestrial
Life cycle
Woody perennial
Life span
5 - 20 years
Annual cycle
Evergreen
Stature
Tree
Growth form
Various
Growth habit
Not applicable
Overall height
4' - 150'
Overall spread
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| Climate |
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Sunshine
Full sun
Water
Well drained
Optimal soil texture
Various
Acceptable soil pH
Soil pH 05-06
USDA hardiness
USDA zones 10a-11
AHS heat zones
Heat zones 12-03
Sunset climate zones
Not classified
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| Garden |
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Suitable for gardens
yes
Nursery
Unknown
Compost
no
Size at acquisition
Unknown
Garden location
Unknown
Garden notes
This somewhat tender plant can only survive cold winter nights that dip to 30� Fahrenheit. Grevillea robusta needs summer days with high heat. Full sun is best for growing Silkoak (also known as grevillea). It usually does best in well drained soils.
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| Special qualities |
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Tolerates drought
no
Tolerates high humidity
no
Tolerates seaside conditions
no
Insect resistant
no
Disease resistant
no
Deer resistant
no
Best uses
Symbiosis
Attracts butterflies
no
Attracts hummingbirds
no
Autumn foliage
no
Colorful berries
no
Desirable qualities
Other interest
Other interest color
Other interest period
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| Adverse factors |
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Common pests
Poisonous parts
Poisonous indications
Internal poison
no
Dermatologic poison
no
Livestock poison
no
Mechanical injury
no
Hay fever pollen
Hay fever season
Adverse qualities
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| Herbal medicine |
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Medicinal properties
Medicinal parts
Has medicinal uses
no
Do not self-administer
no
Do no use if pregnant
no
Legally restricted
no
Toxicity precautions
Medicinal notes
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| Traditional uses |
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Parts used
Traditional uses
Contemporary uses
Fragrance
Fragrance parts
Fragrance intensity
Fragrance category
Dye parts
Dye color
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| Cultivation |
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Propagule
Various
Pollination method
Planting style
Crop spacing
Row spacing
Cold frame
Planting period
Harvesting period
Frost tolerance
Heat requirement
Fertilizer
Typical
Time to harvest
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| Nutrition |
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Is edible
no
Culinary uses
Nutritional value
Edible parts
Description of edible parts
Flavor / texture
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| Horticulture |
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Horticulture notes
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| Herbarium |
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Tag needs printing
no
Collection notes
Grevillea robusta is a woody perennial. Silkoak (locally known in some parts as grevillea) is evergreen. Blossoms appear in March and continue through May. Most often the blossoms occur in either orange or red.
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