Echinocereus Species, Mojave Mound Cactus, Giant Claret Cup, Salmon-flowered Hedgehog, Spiny Hedgeho

Echinocereus polyacanthus subsp. pacificus

Family
Cactaceae (kak-TAY-see-ee)
Genus
Echinocereus (ek-in-oh-KER-ee-us)
Synonym
Cereus phoeniceus var. pacificus
Echinocereus pacificus
Echinocereus polyacanthus var. pacificus
Echinocereus triglochidiatus var. pacificus
Echinocereus mombergerianus
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Orange
Bloom Time
Late Winter/Early Spring
Mid Spring
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From woody stem cuttings
Allow cut surface to callous over before planting
From seed; direct sow after last frost
Seed Collecting
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Chandler, Arizona

Phoenix, Arizona

Waterville, Washington

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Gardener's Notes:

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positive
1
neutral
0
negative
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Phoenix, AZ (Zone 9b) | May 2005 | neutral

This plant (and subspecies) can form clumps with as many as 400 heads
The 'polyacanthus' subspecies has smaller flowers being onl...Read More

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