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PlantFiles: Peruvian Old Man Cactus
Espostoa ritteri f. cristata

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Espostoa (es-POS-toh-uh) (Info)
Species: ritteri f. cristata

Synonym:Espostoa ritteri f. cristate

One member has or wants this plant for trade.

Category:
Cactus and Succulents

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)

Sun Exposure:
Sun to Partial Shade
Light Shade

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Inconspicuous/none

Bloom Time:
N/A

Foliage:
Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping

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

Click thumbnail
to view:

By franj
Thumbnail #1 of Espostoa ritteri f. cristata by franj

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral palmbob On Feb 29, 2004, palmbob from Acton, CA (Zone 8b) wrote:

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 potted, protected specimen. This crest is unusual, but shows the hair typical of the genus.

Regional...

This plant has been said to grow in the following regions:

Tucson, Arizona
Bostonia, California



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