Tropicals > Echinocereus > Echinocereus polyacanthus > Echinocereus polyacanthus
Echinocereus polyacanthus
Giant Claret-Cup Cactus, Salmon-Flowered Hedgehog, Spiny Hedgehog
Origin: Southwestern United States and Northwestern Mexico.
| Family |
| Cactaceae |
| Genus |
| Echinocereus |
| Species |
| polyacanthus |
| Category |
| Tropicals |
| Synonyms |
| Echinopsis valida, Cereus leeanus, Echinocereus leeanus, Cereus acifer, Echinocereus acifer, Cereus phoeniceus, Echinocereus pacificus, Echinocereus durangensis, Cereus huitcholensis, Echinocereus huitcholensis, Echinocereus matthesianus, Echinocereus mar |
| USDA Hardiness Zone |
| 9 - 11 |
| Canadian Hardiness Zone |
| Requires cool season protection under glass. |
| RHS Hardiness Zone |
| H4 - H1c |
| Temperature (°C) |
| 0 |
| Temperature (°F) |
| 10 |
| Height |
| 10 - 15 cm |
| Spread |
| 8 - 12 cm |
Photographs
Cultivars
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Description and Growing Information
Flowering Period
| Landscape |
| Indoor or outdoor container or potted plant or as a specimen. |
| Cultivation |
| Plant in loose, well-draining loamy to sandy soils in full sun. Repot annually for optimal growth. |
| Shape |
| Upright yet mat-forming. |
| Growth |
| Slow |
| Habitat |
| Low-lying, dry rocky slopes and plains. |
| Bark/Stem Description |
| 9 - 13 well-defined ribs, with wooly areoles that contain long thin spines 3 - 5 cm long, arranged in panicles of 5 - 8. |
| Flower Description |
| Solitary flower that appears at the apex of the plant. Open cup-shaped with lanceolate-rounded petals curling slightly backward. Defined single stamen. |
| Colour Description |
| Vivid scarlet red flower, deep green to reddish-green succulent flesh, whitish-cream wooly areolae and blackish-brown spines. |
| Texture Description |
| Smooth, spiny. |
| Notable Specimens |
| Centennial Conservatory, Thunder Bay, Ontario, Canada. |
| Propagation |
| Division. |
References
http://www.cactiguide.com/cactus/?genus=Echinocereus&species=polyacanthus
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