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Grevillea robusta
  • Silky Oak

a perennial woody evergreen member of the Grevillea genus in the family Proteaceae.

248px
Niche
  • Secondary canopy
    Secondary canopy
    There are no details available for this niche.
Functions
  • Rootstock
    Rootstock
    There are no details available for this function.
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • light shade
    Light shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral
    Acid to Neutral
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 9
    Zone 9
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Grevillea robusta has 0 edible uses listed
Grevillea robusta has 0 material uses listed

Uses

Edible uses

Notes

The flowers are one of the richest sources of nectar[1]. This can be sucked directly from the flowers, shaken into a bowl or washed out in a small quantity of water[1]. The nectar falls in showers when the flowers are shaken[2].

Unknown part

Nectar

Material uses

The plant yields small quantities of a gum resin[3].

The leaves contain rutin, though quantities are not specified[4]. Intense yellow and green dyes are obtained from the leaves[5]. This tree is one of the most important reafforestation trees in Nepal[6]. This species is more resistant than other members of the genus to root-rotting fungus, it is sometimes used as a rootstock for the more susceptible species[7].

Wood - strong, silky textured, light, easily split, durable but porous. Used for panelling, joinery, cabinet making etc[3][8][9]. A good fuel[6].

Unknown part

Dye
Gum
Wood

Medicinal uses(Warning!)

There are no medicinal uses listed for Grevillea robusta.

Ecology

Ecosystem niche/layer

Secondary canopy

Ecological Functions

Rootstock

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow February in a warm greenhouse. Germination is usually good[10]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Cuttings of half-ripe wood, 5 - 8cm with a heel, June/July in a frame[10].

Practical Plants is currently lacking information on propagation instructions of Grevillea robusta. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

An easy and fast-growing tree requiring a well-drained slightly acid soil and a sunny position[11]. It prefers a rich moist soil[9], but it also succeeds in dry soils. Dislikes limey soils[12][13]. Established plants are drought resistant[3].

This species is not very hardy when grown outdoors in Britain. In its native range it does experience frosts, though these are normally light and short-lived[9]. Plants tolerate temperatures down to -7°c in Australian gardens[13] though this cannot be translated directly to British gardens because of our cooler summers and longer, colder and wetter winters. It is usually grown as a pot plant in Britain, though it rarely flowers here[12]. A very ornamental plant[12], it is often grown as a street tree in suitable climates[11]. Hybridizes freely with other members of this genus[13]. The flowers are very attractive to bees[3].

Plants in this genus are notably resistant to honey fungus[7].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Grevillea robusta. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Grevillea robusta.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Grevillea robusta
Genus
Grevillea
Family
Proteaceae
Imported References
Edible uses
[1][2]
Medicinal uses
Material uses & Functions
[3][4][5][6][7][8][9]
Botanic
[3][7]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Rootstock
Provides forage for
Provides shelter for
Environment
Hardiness Zone
9
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light shade
Soil PH
acid, neutral
Soil Texture
sandy, loamy, clay
Soil Water Retention
well drained
Environmental Tolerances
  • Drought
Ecosystems
Native Climate Zones
None listed.
Adapted Climate Zones
None listed.
Native Geographical Range
None listed.
Native Environment
None listed.
Ecosystem Niche
Secondary canopy
Root Zone Tendancy
None listed.
Life
Deciduous or Evergreen
evergreen
Herbaceous or Woody
woody
Life Cycle
perennial
Growth Rate
vigorous
Mature Size
30 x 15 meters
Fertility
?
Pollinators
Bees
Flower Colour
?
Flower Type
hermaphrodite

"image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki.

"image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki.


"image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki.

"image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki.

"image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki., "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki., "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki., "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki. "image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki."image:Grevillea robusta flowering in Gan Shmuel01.jpg|248px" cannot be used as a page name in this wiki.






References

  1. ? 1.01.11.2 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
  2. ? 2.02.1 Cribb. A. B. and J. W. Wild Food in Australia. Fontana ISBN 0-00-634436-4 (1976-00-00)
  3. ? 3.03.13.23.33.43.5 Ewart. A. J. Flora of Victoria. ()
  4. ? 4.04.1 Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (1986-00-00)
  5. ? 5.05.1 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
  6. ? 6.06.16.2 Manandhar. N. P. Plants and People of Nepal Timber Press. Oregon. ISBN 0-88192-527-6 (2002-00-00)
  7. ? 7.07.17.27.3 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
  8. ? 8.08.1 Cribb. A. B. and J. W. Useful Wild Plants in Australia. William Collins Pty Ltd. Sidney ISBN 0-00-216441-8 (1981-00-00)
  9. ? 9.09.19.29.3 Holliday. I. and Hill. R. A Field Guide to Australian Trees. Frederick Muller Ltd. ISBN 0-85179-627-3 (1974-00-00)
  10. ? 10.010.1 Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
  11. ? 11.011.1 Phillips. R. & Rix. M. Conservatory and Indoor Plants Volumes 1 & 2 Pan Books, London. ISBN 0-330-37376-5 (1998-00-00)
  12. ? 12.012.112.2 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
  13. ? 13.013.113.2 Wrigley. J. W. and Fagg. M. Australian Native Plants. Collins. (Australia) ISBN 0-7322-0021-0 (1988-00-00)

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Retrieved from "https://practicalplants.org/w/index.php?title=Grevillea_robusta&oldid=77586"
Facts about "Grevillea robusta"RDF feed
Article is incompleteYes +
Article requires citationsNo +
Article requires cleanupYes +
Belongs to familyProteaceae +
Belongs to genusGrevillea +
Functions asRootstock +
Has common nameSilky Oak +
Has drought toleranceTolerant +
Has edible partUnknown part +
Has edible useNectar +
Has environmental toleranceDrought +
Has fertility typeBee +
Has flowers of typeHermaphrodite +
Has growth rateVigorous +
Has hardiness zone9 +
Has imageGrevillea robusta flowering in Gan Shmuel01.jpg +
Has lifecycle typePerennial +
Has material partUnknown part +
Has material useDye +, Gum + and Wood +
Has mature height30 +
Has mature width15 +
Has primary imageGrevillea robusta flowering in Gan Shmuel01.jpg +
Has search namegrevillea robusta + and x +
Has shade toleranceLight shade +
Has soil ph preferenceAcid + and Neutral +
Has soil teclayture preferenceClay +
Has soil teloamyture preferenceLoamy +
Has soil tesandyture preferenceSandy +
Has soil water retention preferenceWell drained +
Has sun preferenceFull sun +
Has taxonomy nameGrevillea robusta +
Has water requirementsmoderate +
Inhabits ecosystem nicheSecondary canopy +
Is deciduous or evergreenEvergreen +
Is herbaceous or woodyWoody +
Is taxonomy typeSpecies +
Tolerates nutritionally poor soilNo +
Uses mature size measurement unitMeters +