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Sea Urchin Cactus, Sand Dollar Cactus, Star Cactus 'Kabuto'

Astrophytum asterias

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Astrophytum asterias by QCHammy
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Family
Cactaceae (kak-TAY-see-ee)
Info
Genus
Astrophytum (ass-troh-FY-tum)
Info
Species
asterias (ass-TEER-ee-as)
Info
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Evergreen
Height
under 6 in. (15 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
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
N/A
Bloom Color
White/Near White
Silver/Gray
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Can be grown as an annual
Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

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; sow indoors before last frost
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:

Riverside, California

Tampa, Florida

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