Banksia spinulosa


Botanical Information

FamilyProteaceae
GenusBanksia
Speciesspinulosa
CategoryWoody
TypeShrub (evergreen)
OriginThe genus Banksia is named after Sir Joseph Banks (1743 - 1820) a British naturalist who joined Captain Cook on his explorations in the Pacific including Australia. The species ashbyi is named after Edwin Ashbyi a wildflower grower who collected the original type form.

Details

USDA Hardiness Zone9
USDA Hardiness Ref.
Canadian Hardiness Zone9a or greater
Canada Hardiness Ref.
RHS Hardiness ZoneH3
RHS Hardiness Ref.
Temperature (°C)(-5) - 1
Temperature (°F)23 - 34
Height0.1 - 0.5 m
Spread0.1 - 0.5 m
GrowthSlow
Flowering PeriodAugust, October, November

Description and Growing Information

General DescriptionIt is a lignotuberous shrub found in two forms; shrub or small tree. They are a fire-sensitive species and thus burns are required for seed release/germination.
ShapeBushy.
LandscapeOrnamental plant, ideal for cut flower production, screen and windbreak.
PropagationSeeds. Do not require any treatment and take 16 - 61 days to germinate.
CultivationFull sun to partial-sahde. Well-drained soils. Tolerates moderate frost. Do not prune to old wood as this could kill the plant. Deep infrequent watering is best.
Notable SpecimensTrebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall.
HabitatRed sand dunes near the coast from Exmouth to Geraldton extending inland.

Photographs