Echinocereus

Echinocereusadustus subsp. schwarzii

Family
Cactaceae (kak-TAY-see-ee)
Genus
Echinocereus (ek-in-oh-KER-ee-us)
Synonym
Echinocereus schwarzii
Echinocereus adustus var. schwarzii
Echinocereus madrensis
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 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
Pink
Magenta (pink-purple)
Bloom Time
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
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
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

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Gardener's Notes:

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

All subspecies grow solitary stems.
The 'adustus' subspecies has 0-1 central spines and about 8 radial spines per areole. The flow...Read More

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