Peruvian Old Man Cactus

Espostoaritteri f. cristata

Family
Cactaceae (kak-TAY-see-ee)
Genus
Espostoa (es-POS-toh-uh)
Synonym
Espostoa ritteri f. cristate
Sun Exposure
Sun to Partial Shade
Light Shade
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
Hardiness
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
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 seed; germinate in vitro in gelatin, agar or other medium
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Tucson, Arizona

Bostonia, California

Round Rock, Texas

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Gardener's Notes:

0
positive
1
neutral
0
negative
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P
Acton, CA (Zone 8b) | February 2004 | neutral

Touchy genus of hairy South American cacti- don't like too much sun or heat, and can't take the cold... rot easily. But can do OK as pot...Read More

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