Ball Cactus, Cream Cactus, Cream Pincushion, Flat Cream Pincushion, Heyder's Nipple Cactus
Mammillaria heyderi subsp. macdougalii

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Mammillaria (mam-mil-AR-ee-uh) (Info)
Species: heyderi subsp. macdougalii
Synonym:Mammillaria macdougalii
Synonym:Mammillaria heyderi var. macdougalii

Category:

Cactus and Succulents

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers

Height:

under 6 in. (15 cm)

Spacing:

6-9 in. (15-22 cm)

9-12 in. (22-30 cm)

12-15 in. (30-38 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)

Sun Exposure:

Sun to Partial Shade

Light Shade

Danger:

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

Bloom Color:

Pale Yellow

Cream/Tan

Bloom Time:

Mid Spring

Foliage:

Succulent

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 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 has been said to grow in the following regions:

Chandler, Arizona

Phoenix, Arizona

Rio Rico, Arizona

Tucson, Arizona

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Sep 17, 2004, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

I've seen these growing in the wild on the West Ruby Road Trail in Arizona (South of Tucson), off of Interstate 19 through to Ruby, AZ and on to Arivaca, AZ.