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Red Silk Oak

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. It 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 Native to Queensland, it has been a popular garden plant for many years though has been superseded somewhat horticulturally by smaller and more floriferous hybrids.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. It is a tall, slender or spreading shrub, or small tree up to 7 m (23 ft) high. Its leaves are pinnate with 3-11 deeply divided, linear to lanceolate segments 5–10 cm (2–4 in) long and 1 cm wide, with curled-back margins. Flowers are bright red or creamy-white, in clusters up to 15 cm (6 in) long. It flowers for most of the year, but mainly in winter and spring.

  • Category Grevillee & Leptospermum
  • Families Proteaceae
  • Genus Grevillea
  • Species banksii
  • Geographical Area of Origin Oceania
  • Climatic Zones Mediterranean: South and islands, hills. USDA 10 a
  • Habit Shrub
  • Leaves Evergreen
  • Colore Foglie Verde
  • Flowering Period March / April / May / June / July
  • Flower Raceme
  • Colore Fiori Rosso
  • Favorite soil Sub-acid / medium acid / Acid / Light sandy / Middle-Dough / Medium soil
  • Water needs Medium
  • Light Exposure Medium shade / Half shade / Full light / Full sun
  • Form Tree / Grown as shrub / bush
  • Colore Frutti Marrone
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