Photo by Melody

PlantFiles: Arizona Ruby Rainbow Hedgehog, Pink Comb Cactus
Echinocereus rigidissimus subsp. rubispinus

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Echinocereus (ek-in-oh-KER-ee-us) (Info)
Species: rigidissimus subsp. rubispinus

Synonym:Echinocereus rigidissimus var. rubispinus
Synonym:Echinocereus pectinatus var. rubispinus
Synonym:Echinocereus pectinatus var. rubrispinus

5 members have or want this plant for trade.

Category:
Cactus and Succulents

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

Spacing:
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
9-12 in. (22-30 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)
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:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Pink
Magenta (Pink-Purple)

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:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
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

Click thumbnail
to view:

By palmbob
Thumbnail #1 of Echinocereus rigidissimus subsp. rubispinus by palmbob

By cacti_lover
Thumbnail #2 of Echinocereus rigidissimus subsp. rubispinus by cacti_lover

By cacti_lover
Thumbnail #3 of Echinocereus rigidissimus subsp. rubispinus by cacti_lover

By cacti_lover
Thumbnail #4 of Echinocereus rigidissimus subsp. rubispinus by cacti_lover

By franj
Thumbnail #5 of Echinocereus rigidissimus subsp. rubispinus by franj

By franj
Thumbnail #6 of Echinocereus rigidissimus subsp. rubispinus by franj

By Xenomorf
Thumbnail #7 of Echinocereus rigidissimus subsp. rubispinus by Xenomorf

There are a total of 27 photos.
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Profile:

2 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive franj On Mar 9, 2006, franj from Tucson, AZ wrote:

A beautifull plant flowering or not. I've had one in the ground for ten years and it has flowered reliably. The only downside is the flowers leave an unsightly scar when they drop off.

Neutral Xenomorf On Apr 23, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

The subspecies 'rigidissumus' has stems that reach over 4 inches thick with 15-23 radial spines per areole.
The subspecies 'rubispinus' has stems that only get about 2 1/2 inches thick with 30-35 radial spines per areole. The spines are also more Ruby/pinkish colored compared to the 'rigidissimus' subspecies.
The flowers on both are bright pinkish-red or magenta or red with white throats.

Positive palmbob On Jul 14, 2004, palmbob from Acton, CA (Zone 8b) wrote:

commonly sold cactus, often part of a cactus/succulent variety pot in home garden centers. Small columnar species with very short pink spines. I have rotted several of these, but if you don't overwater them, they do OK, at least in zone 9b

Regional...

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

Green Valley, Arizona
Phoenix, Arizona
Queen Creek, Arizona
Tucson, Arizona
Brea, California
Brentwood, California
Goleta, California
Hesperia, California
La Puente, California
Stockton, California
Thousand Oaks, California
Blue Earth, Minnesota
Henderson, Nevada
Albuquerque, New Mexico
Cleveland, Ohio
Austin, Texas
Spring Branch, Texas



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