Xeriscape Landscaping Plants For The Arizona Desert Environment.
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Cactus.

Senita Cactus, Pachycereus schottii.

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Senita Cactus, Pachycereus schottii. Also Called: Whisker Cactus,  Lophocereus sargentianus, Lophocereus schottii, Lophocereus schottii var. sargentianus, Lophocereus schottii var. tenuis, Pilocereus sargentianus, Cereus sargentianus, Pachycereus schottii, Pachycereus schottii var. tenuis, Cereus schottii var. australis, Lophocereus schottii var. australis, Lophocereus australis, Pilocereus schottii, Lophocereus schottii, Cereus schottii, Pachycereus schottii, Cereus mieckleyanus. Xeriscape Landscaping Plants For The Arizona Desert Environment.  Pictures, Photos, Information, Descriptions, Images, & Reviews. Cactus.
Senita Cactus, Pachycereus schottii. Photo Taken February 17, 2006.
Senita Cactus, Pachycereus schottii. Also Called: Whisker Cactus,  Lophocereus sargentianus, Lophocereus schottii, Lophocereus schottii var. sargentianus, Lophocereus schottii var. tenuis, Pilocereus sargentianus, Cereus sargentianus, Pachycereus schottii, Pachycereus schottii var. tenuis, Cereus schottii var. australis, Lophocereus schottii var. australis, Lophocereus australis, Pilocereus schottii, Lophocereus schottii, Cereus schottii, Pachycereus schottii, Cereus mieckleyanus. Xeriscape Landscaping Plants For The Arizona Desert Environment.  Pictures, Photos, Information, Descriptions, Images, & Reviews. Cactus.Senita Cactus, Pachycereus schottii. Also Called: Whisker Cactus,  Lophocereus sargentianus, Lophocereus schottii, Lophocereus schottii var. sargentianus, Lophocereus schottii var. tenuis, Pilocereus sargentianus, Cereus sargentianus, Pachycereus schottii, Pachycereus schottii var. tenuis, Cereus schottii var. australis, Lophocereus schottii var. australis, Lophocereus australis, Pilocereus schottii, Lophocereus schottii, Cereus schottii, Pachycereus schottii, Cereus mieckleyanus. Xeriscape Landscaping Plants For The Arizona Desert Environment.  Pictures, Photos, Information, Descriptions, Images, & Reviews. Cactus.
Senita CactusPachycereus schottii

Senita Cactus.
Pachycereus schottii, Cactus Family ( Cactaceae ), Senita Cactus. Also Called: Whisker Cactus, Lophocereus sargentianus, Lophocereus schottii, Lophocereus schottii var. sargentianus, Lophocereus schottii var. tenuis, Pilocereus sargentianus, Cereus sargentianus, Pachycereus schottii, Pachycereus schottii var. tenuis, Cereus schottii var. australis, Lophocereus schottii var. australis, Lophocereus australis, Pilocereus schottii, Lophocereus schottii, Cereus schottii, Pachycereus schottii, Cereus mieckleyanus.

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Columnar, basally branching, slow growing up to 12 feet tall. Stems 4 to 8 inches in diameter; 5 to 10 ribs; areoles on the bottom part of the stems are woolly, oval, 1/8 to 1/4 inch wide, with one to 15 spines, 1/16 to 1/3 inch long; upper areoles 1/3 to 6/10 inch wide, 20 to 75 spines , 1 1/4 to 4 inches long.

Very attractive for landscape use. It is also less frost resistant, and should be protected below 25F

The senita blooms at night at the end of the spring in the 'hairy' part of the stems. The flowers are light pink, up to 1 2/3 inches in diameter. They close around mid-morning. The Senita blooms most of the year, mainly from April to September. The edible fruit is red, with a red pulp.

Can be seen in its native habitat growing at the Organ Pipe Cactus National Monument, AZ.


Quick Notes:

Height: Height to about 12 feet. Spreading to about 8 feet.

Flowers: Light pink, up to 1 2/3 inches in diameter.

Fruit: Red, with a red pulp.

Blooming Time: April - September.

Stems: Green stems are slim, lightly pruinose with broad rounded protuberances roughly branched and poorly defined. The areoles are few and insignificant.

Found: Native to Mexico in Baja California (Norte), Baja California Sur, & Sonora. Also in the southern part of Arizona. The USDA claims it is native to the USA (AZ). In La Paz, & Pima Counties.

Elevation: 0 - 4,800 feet. In native areas.

Hardiness: Zone 8b is too cold in most of Arizona, except for southern Arizona. Only Hardy to 18F. Most growers protect in winter with foam plastic cups on the tips.

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)

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Sun Exposure:
Full Sun

Habitat: Lower elevations sandy flats. It grows well in sand, sandy loam. It needs good drainage and aeration. Common xeriscape landscape plant in Arizona.

Miscellaneous: Maintenance: Low. Photos Taken At The Glendale Arizona Xeriscape Demonstration Garden, February 17, 2006.

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