Spruce Cone Cholla. Tephrocactus articulatus f. inermis, Cactus Family ( Cactaceae ), Spruce Cone Cactus. Also Called: Pine Cone Cactus, Paper Spine Cactus, Pinecone Cactus, Tephrocactus articulatus var. inermis, Tephrocactus articulatus var. diadematus f. inermis. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. This is a very interesting plant looking like spruce tree cones. Good for xeriscapeing. Has white flowers. Quick Notes: Height: Height to about 1 - 2 feet. Cones spreading to about 3 - 4 feet. Flowers: White cup like flowers, 3 - 4 inches in diameter. Blooming Time: April - September. Fruit: Red, with a red pulp. Found: Native to western Argentina, near Chilecito, or Los Colorados, La Rioja Province, Argentina. 3,445 feet elevation. Elevation: 0 - 3,445 feet. Hardiness: Said to only be hardy to 25 �F. But we have some that survived 17 �F. In zone 8b. At 4,886 feet elevation. 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: Some shade until established. Full Sun Habitat: Lower elevations where water is available. It grows well in sand, sandy loam. It needs good drainage and aeration. Little water needed, once established. Common xeriscape landscape plant in Arizona. Miscellaneous: Maintenance: Low. Photos Taken At Glendale Arizona Xeriscape Demonstration Garden. Photo Taken February 20, 2006.

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