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Opuntia polyacantha
We do not know how many seeds there will be in a packet !
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examples '200 seeds' or '0.50 gram', not as packet.
1 packet for 14 Euros
available for preorder

Opuntia polyacantha
10 gram for 55 Euros
available for preorder

Opuntia polyacantha
100 gram for 421 Euros
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Opuntia polyacantha

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 9509

The average, annual, minimum temperature zone where Opuntia polyacantha is cold hardy
USDA Zone:3-
Type of plant - perennial
Flower or inflorescence: to 8x6cm., many colours, mostly YELLOW, March - Aug.
Fruit: dry, TAN, spiny
Foliage: segs. to 15cm. BLUISH, to 1m. clump or mat forming (min. temp. minus 30deg.C.)
Height, in meters: 1
Height, in feet: 3.30
Opuntia polyacantha sales history

Synonyms (alternative names) for Opuntia polyacantha:
Opuntia missouriensis, Opuntia rutila, 

Common names for Opuntia polyacantha:

Cliff Prickly-pear,  Grizzly-bear Prickly-pear,  Hairy Prickly-pear,  Hedgehog Prickly-pear,  IOS 01820,  Juniper Prickly-pear,  Many Spined Cactus,  Nichols Prickly-pear,  Plains Prickly-pear,  Porcupine Prickly-pear,  Red-spine Prickly-pear,  Starvation Prickly-pear, 

Opuntia polyacantha is included in the following
B and T World Seeds flowering plant categories.

1:   Stock list
Our stock changes almost every day, with seeds arriving and being shipped all over the world.
We only stock long lived seeds, except for a few species that are always in demand.
Seeds that are not in stock are acquired fresh when ordered.
5:   Cactus Seed List
See also *Succulent Plant Seed List
43:   Herbaceous Border Plant Seed List
62:   Mexican Native and Introduced Plants
85:   Natives of U.S.South West (Arizona Texas New Mexico)
87:   Natives of Central U.S.A.
95:   Canadian Natives Central Area
130:   Ground cover Plant Seed List (see also List 133)
162:   Cushion Or Hummock Plant Seed List (Small and Larger)
169:   Sandy Soil Plant Seed List
281:  Cactaceae
719:   North American Native Ethnobotanicals
Including medicinal, dye, fiber, food, construction, ritual
720:   Fire Resistant Plants
Different classes of resistance: some grow back, some don't burn, a few have highly inflammable leaves that leave the rest of the plant intact, some trees don't have lower branches.

Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.

Germination guide for Opuntia polyacantha

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Opuntia polyacantha 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 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 Opuntia polyacantha 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.


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