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PlantFiles: Arizona Queen of the Night, Deer Horn Cactus, Reina de la Noche, Night Blooming Cereus
Peniocereus greggii

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Peniocereus (pen-ee-oh-KER-ee-us) (Info)
Species: greggii (GREG-ee-eye) (Info)

Synonym:Cereus greggii
Synonym:Peniocereus greggii var. greggii

» View all varieties of Orchid Cactus

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Category:
Cactus and Succulents

Height:
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:
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)

Hardiness:
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)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

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

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Foliage:
Good Fall Color

Other details:
Flowers are fragrant
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

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

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There are a total of 9 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Xenomorf On Oct 6, 2004, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

Other common names are: Saramatraca, Sweet Potato Cactus.
It has massive tubers up to 2ft. thick, is edible and used medicinally. Stems are half to one inch thick.
There are 2 varieties of the species.
'Var. greggii' has flowers 2 inches across and is found in nature above 4000 ft in the Southwestern deserts.
'Var. transmontanus' , the flowers are 3 inches across and is found in the Sonoran desert below 3300 ft.
Also can be grown from seed.

Regional...

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

,
Chandler, Arizona
Chandler Heights, Arizona
Green Valley, Arizona
Phoenix, Arizona
Bostonia, California
Long Beach, California
Jacksonville, Florida
Mont Belvieu, Texas
Terlingua, Texas
Christiansted, Virgin Islands



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