Cleistocactus

Cleistocactusbuchtienii

Family
Cactaceae (kak-TAY-see-ee)
Genus
Cleistocactus (Kly-stoh-KAK-tus)
Species
buchtienii (buk-TINE-ee-eye)
Synonym
Cleistocactus ayopayanus
Cleistocactus sucrensis
Cleistocactus angosturensis
Cleistocactus ressinianus
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Evergreen
Succulent
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
Hardiness
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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Red
Chartreuse (yellow-green)
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Bronze
Where to Grow
Bloom Characteristics
Bloom Size
Other details
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
Allow cut surface to callous over before planting
From seed; direct sow after last frost
Seed Collecting
Bag seedheads to capture ripening seed
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
Regional

This plant is said to grow outdoors in the following regions:

Chandler, Arizona

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Gardener's Notes:

0
positive
2
neutrals
0
negative
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M
Chandler, AZ (Zone 9b) | February 2012 | neutral

I've also seen this species listed under, "Cleistocactus sotomayorensis" (from collection FR824 from Sotomayor, Bolivia).

P
Acton, CA (Zone 8b) | December 2004 | neutral

shrubby plant- ones in photos I've seen are intensely spiny with reddish tinge to spines... but plant here I photographed has only 1 spin...Read More

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