Height: 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m) 10-12 ft. (3-3.6 m) 12-15 ft. (3.6-4.7 m)
Spacing: 12-15 in. (30-38 cm) 15-18 in. (38-45 cm) 18-24 in. (45-60 cm) 24-36 in. (60-90 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)
Sun Exposure: Full Sun
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: Red
Bloom Time: N/A
Other details: This plant is suitable for growing indoors 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 woody stem cuttings From softwood 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 Apr 21, 2013, tagreece from Athens Greece wrote:
This succulent became a problem for my garden (Athens, Greece, zone 9, near the sea). It was more than 2 m high (6,5 feet) and the bush was more than 3 m. (9,5-10 feet) large. It was difficult to keep its growth under control. Finally we decide to eradicate it. This task was much more difficult. Now we have a small one in a pot and a free space in our garden.
But today, 4 years after the eradication, no plant can grow there. I am searching if "Aco subulata" has an allelopathy factor that impede other plants to grow. In the same place we have planted a Jasminum nudiflorum, then a Buddleja davidi and finally a Bougainvillea spectabilis. None of them succeed.
On Dec 1, 2009, rionmaiden from 2233 Australia wrote:
This is the fastest growing cactus I own and living in Australia, it gets plenty of sun and I have covered the soil surface with sugarcane mulch, and it keeps the plant cooler than normal, it seems to be the key to the growth rate.
Does anyone else use mulch instead of the small rocks or grit? And have you had any luck?
On Jul 30, 2004, TucsonJen from Tucson, AZ (Zone 9a) wrote:
Mine is less than a foot tall so I'll have to be patient to see how big it will grow!
According to George Hull (Glendale Public Library) the asparagas cactus is:
Hardy in USDA zones 9-10. Should be planted in full sun. Native at higher elevations up to 12000' in Ecuador and Peru. This is one of the tree-like cacti growing up to 13' tall and 10' in diameter. Leaves are narrow and up to 5" long.
Update 8-28-04: The local critters (rabbits and round-tailed ground squirrels) just couldn't resist it. Such a shame, I really like this plant. *sigh*
This is a great cactus!! Once established it grows very rapidly. I was told this specimen could reach a height of six foot tall four feet wide. I have had no problems with it and it take full sun where I live.
This plant has been said to grow in the following regions:
Chandler Heights, Arizona Golden Valley, Arizona Mesa, Arizona Phoenix, Arizona (3 reports) Picture Rocks, Arizona Queen Creek, Arizona Scottsdale, Arizona Surprise, Arizona Tucson, Arizona Castro Valley, California Clayton, California Fairfield, California La Jolla, California Menifee, California Merced, California San Diego, California San Leandro, California Vacaville, California Valley Village, California Fort Walton Beach, Florida Jacksonville, Florida Kenner, Louisiana Henderson, Nevada Albany, Oregon