Photo by Melody

PlantFiles: Stenocactus
Stenocactus phyllacanthus

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Stenocactus (sten-oh-KAK-tus) (Info)
Species: phyllacanthus
Synonym:Echinocactus phyllacanthus
Synonym:Brittonrosea phyllacantha
Synonym:Ferocactus phyllacanthus
Synonym:Efossus phyllacanthus

2 members have or want this plant for trade.

Cactus and Succulents

under 6 in. (15 cm)

3-6 in. (7-15 cm)

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)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Pale Yellow

Bloom Time:
Late Summer/Early Fall

Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

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:

Propagation Methods:
From seed; direct sow after last frost
By grafting

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

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By palmbob
Thumbnail #1 of Stenocactus phyllacanthus by palmbob

By cactus_lover
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By franj
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By palmbob
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By RosinaBloom
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1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive palmbob On Aug 16, 2004, palmbob from Acton, CA (Zone 8b) wrote:

small spherical plant (when young) with deep, wiggly ridges up and down the body. Short, thick white spines grouped in five sparsely spaced around plant. Small whitish flowers.


This plant has been said to grow in the following regions:

Tucson, Arizona

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