Crested Twin-Spined Cactus, Crested Whitey
Mammillaria geminispina f. cristate

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Mammillaria (mam-mil-AR-ee-uh) (Info)
Species: geminispina f. cristate

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:

Full Sun

Sun to Partial Shade

Light Shade

Danger:

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

Bloom Color:

Inconspicuous/none

Bloom Time:

N/A

Foliage:

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:

Non-patented

Propagation Methods:

From woody stem cuttings

Allow cut surface to callous over before planting

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Phoenix, Arizona

Tucson, Arizona

Gardeners' Notes:

No details have been posted.