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Thelocactus

Thelocactusleucacanthus

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Thelocactus leucacanthus by palmbob
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Family
Cactaceae (kak-TAY-see-ee)
Info
Genus
Thelocactus (thel-oh-KAK-tus)
Info
Species
leucacanthus (lew-kah-KAN-thus)
Info
Synonym
Thelocactus leucacanthus subsp. leucacanthus
Thelocactus leucacanthus var. ehrenbergii
Thelocactus porrectus
Echinocactus ehrenbergii
Thelocactus leucacanthus var. sanchezmejoradae
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Height
under 6 in. (15 cm)
Spacing
9-12 in. (22-30 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
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Red
Pale Yellow
Lavender
Bloom Time
Mid Spring
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

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 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:

Phoenix, Arizona

Reseda, California

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Xenomorf
Phoenix, AZ (Zone 9b) | September 2004 | neutral

The subspecies 'leucacanthus' has yellow flowers, and the subspecies 'schmollii' has violet to carmine red, or magenta flowers.

P
P
palmbob
Acton, CA (Zone 8b) | April 2004 | neutral

small clumping cactus with short spines and various colored flowers in spring (I've only seen pale yellow, though). Without the flowers,...Read More

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