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PlantFiles: Spider Cactus
Gymnocalycium denudatum

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Gymnocalycium (jim-no-kal-LISS-ee-um) (Info)
Species: denudatum (dee-noo-DAY-tum) (Info)

Synonym:Gymnocalycium denudatum var. denudatum

4 members have or want this plant for trade.

Category:
Cactus and Succulents

Height:
under 6 in. (15 cm)

Spacing:
6-9 in. (15-22 cm)
9-12 in. (22-30 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)

Sun Exposure:
Sun to Partial Shade
Light Shade

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

Bloom Color:
Pale Pink
Pink
Pale Yellow
White/Near White

Bloom Time:
Mid Summer

Foliage:
Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping
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:
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

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By palmbob
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By cactus_lover
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By cactus_lover
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By franj
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There are a total of 13 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive palmbob On Jul 6, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Small globular green cactus with nearly harmless spines flattened against body in shape of small, white spiders. Large flowers of pale pink to white in summer (though some forms have deep pink flowers).

Regional...

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

Grenoble,
Phoenix, Arizona
Tucson, Arizona



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