Dagger Cactus, Pitahaya Agria, Pitayo Agrio

Stenocereusgummosus

Family
Cactaceae (kak-TAY-see-ee)
Genus
Stenocereus (sten-oh-KER-ee-us)
Synonym
Cereus gummosus
Lemaireocereus gummosus
Machaerocereus gummosus
Rathbunia gummosa
Sun Exposure
Full Sun
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
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)
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
Parts of plant are poisonous if ingested
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Pale Pink
Rose/Mauve
Lavender
White/Near White
Bloom Time
Mid Spring
Late Spring/Early Summer
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 woody stem cuttings
From softwood 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
Regional

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

Phoenix, Arizona

Canoga Park, California

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Gardener's Notes:

1
positive
1
neutral
0
negative
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E
| June 2007 | positive

Woody cutting from Pacific vinyard area; started in decomp granite "soil" in San Felipe, June 2004 (then ignored it!); moved to clay pot ...Read More

X
Phoenix, AZ (Zone 9b) | August 2005 | neutral

The sap is toxic, but the fruit are edible.

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(Heteropelma scaposum)
Common Pheasant
(Phasianus colchicus)