Oreocereus Species, Man of the Andes

Oreocereuscelsianus

Family
Cactaceae (kak-TAY-see-ee)
Genus
Oreocereus (or-ee-oh-KER-ee-us)
Species
celsianus (sels-ee-AY-nus)
Synonym
Borzicactus celsianus
Borzicactus fossulatus
Oreocereus maximus
Oreocereus neocelsianus
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Succulent
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Pink
Magenta (pink-purple)
Bloom Time
Late Spring/Early Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow
Can be grown as an annual
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
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:

Green Valley, Arizona

Kingman, Arizona

Phoenix, Arizona

Scottsdale, Arizona

Apple Valley, California

Castro Valley, California

Hayward, California

Hesperia, California

Pittsburg, California

Pleasant Hill, California

San Diego, California

San Marino, California

Sonoma, California

Spring Valley, California

Templeton, California

Valley Center, California

Vista, California(9 reports)

Spring Hill, Florida

Las Vegas, Nevada

Saint George, Utah

Salt Lake City, Utah

South Jordan, Utah

show all

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Gardener's Notes:

3
positives
1
neutral
0
negative
Sort By:
Sort By:
L
Cortez, CO (Zone 7a) | December 2022 | neutral

I have not had luck with Oreocereus (Celsianus & Trollii) here in the four corners. They survive up to about late December or January bef...Read More

M
M
Las Vegas, NV (Zone 9a) | September 2015 | positive

I have one that sits under my covered patio facing South in the Vegas desert heat and it actually grows fast considering. It does not tol...Read More

D
Spring Hill, FL | October 2010 | positive

Very cold hardy! I purchased this cactus at Lowe's when it was 3-4" tall in Spring 2009. Transplanted to a larger pot & kept it in that ...Read More

X
Phoenix, AZ (Zone 9b) | June 2004 | positive

Propagation: Seeds

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