Texas Rainbow, Golden Rainbow Hedgehog, Texas Rainbow Hedgehog, Yellow-Flowered Pitaya

Echinocereus dasyacanthus

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Echinocereus (ek-in-oh-KER-ee-us) (Info)
Species: dasyacanthus (day-see-uh-KAN-thus) (Info)
Synonym:Cereus dasyacanthus
Synonym:Cereus ctenoides
Synonym:Echinocereus hildmannii
Synonym:Echinocereus steereae
Synonym:Echinocereus dasyacanthus var. rectispinus


Cactus and Succulents

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Suitable for growing in containers


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


3-6 in. (7-15 cm)

6-9 in. (15-22 cm)


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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


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

Bloom Color:



Bright Yellow


White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer


Unknown - Tell us

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:


Propagation Methods:

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

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


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

Maricopa, Arizona

Phoenix, Arizona

Hesperia, California

Reseda, California

Valley Center, California

Boise, Idaho

Meridian, Idaho

Henderson, Nevada

Albuquerque, New Mexico (2 reports)

Cleveland, Ohio

Fort Worth, Texas

Kermit, Texas

Stafford, Virginia

show all

Gardeners' Notes:


On Jan 20, 2014, idahocactus2 from Boise, ID wrote:

The Echinocereus dasyacanthus does quite well in the Boise Valley here in southwest Idaho. It is at least hardy to zones 6a, 6b, and zone 7. Needs fast draining soil and a sunny location and does especially well on mounds over 2 feet and also in raised planters. It is very similar in hardiness to the echinocereus reichenbachii types. Very free blooming and a great addition to any desert garden.


On May 3, 2005, Xenomorf from Phoenix, AZ (Zone 9b) wrote:

This usaully grows solitarily rarely clumping.
The flowers are most frequently yellow to yellow-orange-gold but will sometimes be whiteish, orange, pink, magenta, purple, chartruese or pastel rainbow.
This species has frequently been included into Echinocereus pectinatus but is actually a separate species.

Other valid synonyms are:
Echinocereus ctenoides
Echinocereus pectinatus subsp. ctenoides
Echinocereus dasyacanthus subsp. rectispinus


On Mar 13, 2005, cacti_lover from Henderson, NV (Zone 9b) wrote:

This cactus has been with me for three years now and it has bloomed every year since. It started out with three segments, each one about a foot long, growing from one root system. I've been wanting it to form a pup or two, and boom, I got twelve! The yellow flowers are about 5" across and are fragrant. They will open wide only in full sun and last 3-5 days. It seems pretty easy to grow and takes the heat and cold here very well. I water it once a week in the summer and very little in the winter.