Arizona Pincushion, Cob Cactus

Escobariatuberculosa

Family
Cactaceae (kak-TAY-see-ee)
Genus
Escobaria (es-koh-BAR-ree-uh)
Synonym
Escobaria tuberculosa var. tuberculosa
Coryphantha tuberculosa
Cactus tuberculosus
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)
Hardiness
USDA Zone 8b: to -9.4 °C (15 °F)
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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Pale Pink
Pink
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
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:

Chandler, Arizona

Maricopa, Arizona

Phoenix, Arizona

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Gardener's Notes:

0
positive
1
neutral
0
negative
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Phoenix, AZ (Zone 9b) | September 2004 | neutral

This species has been ID'd in the past as Escobaria strobiliformis, but that type of E. strobiliformis is actually Escobaria chihuahuensis.

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