Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) 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) USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure: Full Sun Sun to Partial Shade
Danger: Handling plant may cause skin irritation or allergic reaction Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: Bright Yellow Pale Green
Bloom Time: Mid Spring Late Spring/Early Summer
Foliage: Grown for foliage Evergreen Herbaceous Succulent
Other details: May be a noxious weed or invasive Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater
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 herbaceous stem cuttings From woody stem cuttings Allow cut surface to callous over before planting
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
On Dec 6, 2010, Alexwtf_93 from Susanville, CA wrote:
i have several different varieties of this cactus, they are all hardy enough to grow all year in northern california (hot dry summers, cold snowy winters) i have ones that get pink, yellow, and white flowers, and a few that have never bloomed, but they are more interesting-looking than the ones with flowers
On Aug 18, 2008, 1cros3nails4gvn from Bluffton, SC (Zone 9a) wrote:
awful plant to encounter! the spines have barbs, and are impossible to pull out. i find it rather ugly looking. the smaller bristles are worse than the big spines because they are the exact same, but break when you try to pull them out
On Nov 15, 2005, darylmitchell from Saskatoon, SK (Zone 3a) wrote:
These cacti grow readily in the northern prairies, sharing dry hillsides with native grasses. They are easily pulled apart. While taking photos I discovered that two pads were stuck in the sole of my shoe. Good thing they were thick soles or I would have been stabbed in the foot.
On Nov 30, 2004, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:
Other synonyms include: Tunas fragilis & Opuntia fragilis ssp. brachyarthra.
This Cactus species is the most Northern found of all cacti.
Hybrids are common, and the spines are used as fishhooks because of their strong barbs.
Used medicinally to treat sores, sore throat, as a diuretic, and to facilitate childbirth.
On Sep 7, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:
A hardy cactus! It is very low-growing, small pads that remove and root easily.
This plant has been said to grow in the following regions:
Phoenix, Arizona Sunol, California Susanville, California Chicago, Illinois Parsons, Kansas North Westport, Massachusetts Stephenson, Michigan Grove City, Ohio Oklahoma City, Oklahoma Chambersburg, Pennsylvania Bluffton, South Carolina Hilton Head Island, South Carolina Genola, Utah Leesburg, Virginia Great Cacapon, West Virginia