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PlantFiles: Spruce Cone Cholla, Pine Cone Cactus, Pinecone Cactus
Tephrocactus articulatus f. inermis

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Tephrocactus (tef-roh-KAK-tus) (Info)
Species: articulatus f. inermis

Synonym:Tephrocactus articulatus var. inermis
Synonym:Tephrocactus articulatus var. diadematus f. inermis

9 members have or want this plant for trade.

Category:
Cactus and Succulents

Height:
18-24 in. (45-60 cm)

Spacing:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 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)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

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

Bloom Color:
White/Near White

Bloom Time:
Mid Spring

Foliage:
Deciduous
Succulent

Other details:
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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By KactusKathi
Thumbnail #1 of Tephrocactus articulatus f. inermis by KactusKathi

By Xenomorf
Thumbnail #2 of Tephrocactus articulatus f. inermis by Xenomorf

By palmbob
Thumbnail #3 of Tephrocactus articulatus f. inermis by palmbob

By KactusKathi
Thumbnail #4 of Tephrocactus articulatus f. inermis by KactusKathi

By KactusKathi
Thumbnail #5 of Tephrocactus articulatus f. inermis by KactusKathi

By KactusKathi
Thumbnail #6 of Tephrocactus articulatus f. inermis by KactusKathi

By conor123
Thumbnail #7 of Tephrocactus articulatus f. inermis by conor123

There are a total of 10 photos.
Click here to view them all!

Profile:

3 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive swampwolf On Jun 27, 2011, swampwolf from Goodyear, AZ wrote:

Fun plant to have. Produces many branches that will fall off and can be planted after a week or two of drying. Tips of the "pinecone" have short and very sharp spines, handle near the base. Will "wilt" when it needs water and in the dormant growing period during the winter. Recovers quickly.

Positive janscactus On May 16, 2009, janscactus from Yuma, AZ wrote:

Fascinating cactus! I have had this plant for many years, growing in my front yard (xeriscape). My long and slender speciman moves back and forth in nearly 180 degree north-south arc. Does anybody know why? Is this common? I love this cactus! janscactus.

Positive Xenomorf On Oct 4, 2004, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

This particular form "inermis" [aka- harmless] has no spines or glochids.

This plant is a sub-variety or Forma of "Tephrocactus articulatus var. diadematus"
Full name: "Tephrocactus articulatus var. diadematus f. inermis"

Regional...

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

Chandler, Arizona
Chandler Heights, Arizona
Goodyear, Arizona (2 reports)
Phoenix, Arizona
Tucson, Arizona
Yuma, Arizona



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