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PlantFiles: Bishop's Miter, Bishop's Cap, Mitra, Bonete de Obispo
Astrophytum myriostigma var. nudum

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Astrophytum (ass-troh-FY-tum) (Info)
Species: myriostigma var. nudum

Synonym:Astrophytum myriostigma var. nuda
Synonym:Astrophytum myriostigma f. nuda
Synonym:Astrophytum nuda
Synonym:Astrophytum myriostigma subsp. potosinum var. nudum

One member has or wants this plant for trade.

Category:
Cactus and Succulents

Height:
under 6 in. (15 cm)
6-12 in. (15-30 cm)

Spacing:
9-12 in. (22-30 cm)
12-15 in. (30-38 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:
N/A

Bloom Color:
Pale Yellow

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer

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 seed; sow indoors before last frost
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

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There are a total of 11 photos.
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Profile:

2 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Vida7 On Aug 5, 2008, Vida7 from San Diego, CA wrote:

Great Cacti plant all around....Very drought tolerant and can take an extreme hot beating from the sun and can stand cold frosty winters. Got mine 5 yrs ago here in San Diego and was the size of a golf ball. Now it is around the size of a medium sized softball. Can also water as much as you want and will not get root rot. It'll take as much water as you can give it.

Positive palmbob On Mar 3, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Normally a grey plant with a very rough almost sandy surface, the nudum variety has just 'normal' green cactus skin... though saw in Huntington gardens, Pasadena and an older plant has a more weathered look and harder to tell the difference. Has an almost shark-like skin. Bishop's hat spineless cactus. Flowers are light yellow

Regional...

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

Grenoble,
Tucson, Arizona
Carlsbad, California
El Cajon, California
San Diego, California
Santee, California
Temecula, California



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