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

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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

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:
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 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

Click thumbnail
to view:

By Xenomorf
Thumbnail #1 of Mammillaria heyderi subsp. macdougalii by Xenomorf

By Xenomorf
Thumbnail #2 of Mammillaria heyderi subsp. macdougalii by Xenomorf

By Xenomorf
Thumbnail #3 of Mammillaria heyderi subsp. macdougalii by Xenomorf

By Xenomorf
Thumbnail #4 of Mammillaria heyderi subsp. macdougalii by Xenomorf

By Xenomorf
Thumbnail #5 of Mammillaria heyderi subsp. macdougalii by Xenomorf

By palmbob
Thumbnail #6 of Mammillaria heyderi subsp. macdougalii by palmbob

By shabbyaby
Thumbnail #7 of Mammillaria heyderi subsp. macdougalii by shabbyaby

There are a total of 11 photos.
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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Xenomorf 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.

Regional...

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

Phoenix, Arizona
Rio Rico, Arizona
Tucson, Arizona



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