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PlantFiles: Glory of Texas, Straw Spine Cactus, Texas Pride
Thelocactus bicolor

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Thelocactus (thel-oh-KAK-tus) (Info)
Species: bicolor (BY-kul-ur) (Info)

Synonym:Echinocactus bicolor
Synonym:Hamatocactus bicolor
Synonym:Ferocactus bicolor
Synonym:Cactus bicolor
Synonym:Thelocactus bicolor subsp. bicolor

2 members have or want this plant for trade.

Cactus and Succulents

6-12 in. (15-30 cm)

9-12 in. (22-30 cm)
12-15 in. (30-38 cm)

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:
Full Sun
Sun to Partial Shade

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

Bloom Color:
Magenta (Pink-Purple)

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


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:

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; germinate in vitro in gelatin, agar or other medium

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 Thelocactus bicolor by Xenomorf

By Xenomorf
Thumbnail #2 of Thelocactus bicolor by Xenomorf

By Xenomorf
Thumbnail #3 of Thelocactus bicolor by Xenomorf

By Xenomorf
Thumbnail #4 of Thelocactus bicolor by Xenomorf

By leeann6
Thumbnail #5 of Thelocactus bicolor by leeann6

By leeann6
Thumbnail #6 of Thelocactus bicolor by leeann6

By Xenomorf
Thumbnail #7 of Thelocactus bicolor by Xenomorf

There are a total of 15 photos.
Click here to view them all!


2 positives
2 neutrals
No negatives

Gardeners' Notes:

Neutral Xenomorf On Nov 2, 2006, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

More synonyms of this plant are Echinocactus rhodophthalmus & Thelocactus bicolor var. bicolor

Neutral frostweed On Oct 4, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Glory of Texas, Straw Spine Cactus, Texas Pride, Thelocactus bicolor
is Endemic to Texas.

Positive leeann6 On Jun 3, 2005, leeann6 from Kermit, TX (Zone 7b) wrote:

The stems of "Glory of Texas" are solitary, grayish blue-green and ususally egg-shaped. They may reach 8" in height and 4 or 5" in diameter. The long central spines are flattened and flexible, white and pink-red in color, and get up to 3" or more in length.
The spectacular flowers are brilliant satiny fuschia with deep scarlet throats, often growing to 4"in diameter. They bloom from April - June. The fruits are about 1/2" long and are green and dry at maturity.

Positive palmbob On Jul 24, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Nice looking plant with striking flowers. From N Mexico to Texas. Some forms are hardier than others (some hardy to 10F). Small columnar spiny plant.


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

Phoenix, Arizona
Cleveland, Ohio
Kermit, Texas
Portland, Texas

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