B and T World Seeds' reference number: 11465
USDA average, annual, minimum temperature Zone:3
Type of plant - perennial
Flower: YELLOW
Foliage: spines multi-coloured

Opuntia polyacantha Powell Wyo is included in the following B and T World Seeds flowering plant categories:
5:   Cactus Seed List
43:   Herbaceous Border Plant Seed List
87:   Natives of Central U.S.A.
281:  Cactaceae

Germination guide
Opuntia polyacantha Powell Wyo seeds will usually germinate in 5-180 days, even under good conditions germination may be erratic. Normally will only germinate with light so surface sow. Sow Opuntia polyacantha Powell Wyo seeds on the surface of a Peaty seed sowing mix at about 25°C.

Sand, and loam, with some sphagnum moss or coir (coconut fiber/dust) make a good mix for germinating cacti and similar seeds. The mix needs to be free-draining, and to be slightly water retentive. Surface sow the seeds and just cover with sand. Start germinating the seeds in shady (dark), humid conditions. As the seeds start to germinate, increase the light and decrease the humidity.

Cacti