Encephalartos altensteinii (Prickly Cycad)


Botanical Information

FamilyZamiaceae
GenusEncephalartos
Speciesaltensteinii
CategoryWoody
TypeTree (evergreen), Shrub (evergreen)
OriginNative to Southern Africa.

Details

USDA Hardiness Zone10 - 12
USDA Hardiness Ref.
Canadian Hardiness ZoneRequires cool season protection under glass.
Canada Hardiness Ref.
RHS Hardiness Ref.
Height3 - 6 m
Spread2 - 5 m
GrowthSlow

Description and Growing Information

ShapeDense and upright.
LandscapeOrnamental use and container planting when young.
CultivationFull sun and partial-shade. Moist, well-drained soils. Prefers loam. Shade, light frost and drought tolerant.
Notable SpecimensKings Park and Botanical Garden, Perth, Australia.
Bark/Stem DescriptionOver time a stout trunk develops.
Flower/Leaf Bud DescriptionProduces seed cones. The cones on female trees grow to 55 cm long and resembles a pineapple. Cones on male trees are cylindrical and smaller.
Leaf DescriptionStiff, pinnate, palm-like leaves with spiny leaflets. Leaves are whorled into a dense upright crown. Leaflets usually have prickles.
Colour DescriptionThe leaflets are bright green. The cones are yellowish-green.

Photographs