Grevillea robusta - Silky oak

Description and Uses

Grevillea robusta (Silky oak) is a tropical tree from Southern Australia . It is mainly grown for its timber crops , which have a no shelf life. The crop is harvested by total removing. It starts flowering after 0 - 0 years. The yield will be {missing data}, but in its top season there will be a yield of {missing data}. Other crop types include; {missing data} . The {missing data} is used as {missing data} . The {missing data} is used as " {missing data} " with {missing data} ({missing data} - {missing data}) as its significant phytochemical. There is {missing data} extracted by {missing data} from the tree's {missing data} yielding {missing data} - {missing data} oil. The tree's wood is called {missing data} and has a density of 540 - 720 kg/m³. Regarding firewood production the tree's growing speed is fast, it's energetic value is 4900 ckal/kg and the wood's drying speed is {missing data}. After 18 years the tree can be totally removed as it reached its commercial and ecological goal. Grevillea robusta has a lifespan of 50 years.

Environmental limitations

The tree is 30 meters tall with a crown of 12 meters wide. The tree prefers a planting distance of 300 cm and a row distance of 400 cm. It is very fast growing and intolerant to shade. Grevillea robusta has a deep root-system and it has symbiotic associations with the fungi (endo-mycorrhiza). It is not able to fix nitrogen with "any bacteria. The name(s) or string of bacteria include(s) "not applicable ". The tree's flower-morphology is bi-sexual and is pollinated by bees. Grevillea robusta is {missing data} and a bit allelopathic and has no thorns.

Grevillea robusta thrives in an altitude of 0 to 2300 meters above sea-level (tropical). The minimum temperature is -8°C; optimally between 14 - 31°C. The optimal rainfall is 1450 mm/year. Without irrigation the annual rainfall should be between 600 - 1700mm (L/m²). The optimal soil-pH is between 5.0 - 7.0 in a soil texture of all. To salt it is a bit tolerant to wind {missing data} and to fire {missing data}.

Pests and Diseases

Grevillea robusta is susceptible to the following pests: Coptotermes curvignathus , Asterolecanium pustulans , Coptotermes gestroi . And it's susceptible to the following diseases: (missing data) , , .

Seed Propagation

Seeds are orthodox and can be stored for 1 months. There are approximative 275 seeds/kg. The seeds can be propagated as followed: {missing data}