Prickly Pear Cactus
Opuntia polyacantha
oomohpoksis(Blackfoot)
Yes — Alberta has a native cactus! The Plains Prickly Pear grows in the driest coulees and rocky slopes of southern Alberta, blooming in June and July with spectacular yellow flowers. Hardy to Zone 3. Blackfoot peoples roasted and ate the fruits; pads were used medicinally. Watch for glochids — tiny barbed hairs that detach easily and embed in skin; even 'spineless' cultivars have them.
Quick Facts
Distribution
Badlands, Milk River, Waterton, Zone 3
Light
Full sun, rocky/sandy
Bloom Time
June–July
Soil
Sharply drained gravelly or sandy soil; will rot in heavy clay or moisture
Water
Almost none — rainfall usually sufficient; avoid watering in winter
Growing & Cultivation
Best Planting Time
Spring through early summer
Propagation
Extremely easy from pad cuttings — snap off a pad (wear thick gloves!), let the wound callus for 5–7 days, then press the callused end into dry sandy soil. Roots in 3–6 weeks.
Always verify plant identification with multiple sources before consuming any wild plant. This information is for educational purposes only.
