Opuntia erinacea (Grizzly Bear Cactus)


Botanical Information

FamilyCactaceae
GenusOpuntia
Specieserinacea
SynonymsOpuntia polyacantha var. erinacea, Opuntia hystricina var. bensonii
CategoryTropicals

Details

USDA Hardiness Zone8a - 10b
USDA Hardiness Ref.
Canadian Hardiness ZoneRequires cool season protection under glass.
Canada Hardiness Ref.
RHS Hardiness ZoneH5
RHS Hardiness Ref.
Temperature (°C)-15
Temperature (°F)5
Height45 - 60 cm
Spread60 - 90 cm
GrowthMedium

Description and Growing Information

ShapeClumping low-spreading.
LandscapeAmong potted succulent collections, as a potted patio or indoor plant, in rock gardens or as a specimen.
PropagationDivision or rooting of pads or seed.
CultivationGrow in full sun to partial shade in gravelly, dry, well-draining loose soil.
PestsNone known. Rot may occur if soil is too wet.
Notable SpecimensThe University of Alberta Botanic Garden, Devon, Alberta, Canada.
HabitatDry slopes, plains and rocky outcroppings.
Leaf DescriptionSmooth, leathery, fleshy succulent bodies growing overtop of each other repeatedly, with long spines in panicles of 2 - 3.
Flower DescriptionShowy small, rounded cup-shaped blooms at the apex of a body with around 10 - 20 pinnate-forked petals arranged in a loose rosette.
Colour DescriptionFlesh can vary in colour from a dark, deep green to vivid medium green. Buttery yellow to rosy pink blooms. Silvery-white spines.
Texture DescriptionSmooth and leathery with long spines.

Photographs