Grevillea banksii
Red Silky Oak
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Red Silky Oak (Grevillea banksii) - Description
Grevillea banksii, known by various common names including Red silky oak, Dwarf silky oak, Banks' grevillea, Byfield waratah and, in Hawaii, Kahili flower or Kahili tree is a plant of the large genus Grevillea in the diverse family Proteaceae. Native to Queensland, it has been a popular garden plant for many years though has been superseded somewhat horticulturally by smaller and more floriferous hybrids. A white-flowered form G. banksii fo. albiflora is known as white silky oak.
Red Silky Oak (Grevillea banksii) - Blooming
Too much phosphorus can prevent blooming. Flowers are petalless. Some species, like G. alpina, bloom year round.
Red Silky Oak (Grevillea banksii) - Growth
Grow in open sunny position. Many are tolerant of drought and frost.
Red Silky Oak (Grevillea banksii) - Planting
Grow from half hard cuttings for from seed. Seeds will sprout readily if planted in moist, warm area. Be aware that some types grafted onto more vigorous species.
Red Silky Oak (Grevillea banksii) - Pest
Scale insects and mealybugs. Occasionally susceptible to root rot and dieback.
Red Silky Oak (Grevillea banksii) - Interesting facts
Grevillea flowers were once mixed in water and drank as a sweet beverage by Australia aborigines. Plant parts may irritate the skin upon contact.
Red Silky Oak (Grevillea banksii) - Soil and irrigation
Provide good drainage as too much watering negatively effects these plants. Use low phosphorus soil.
