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Christmas Tree Cactus, Eve's Needle
Austrocylindropuntia subulata f. monstrosa

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Austrocylindropuntia (oss-troh-sil-in-droh-PUN-tee-uh) (Info)
Species: subulata f. monstrosa
Synonym:Cylindropuntia subulata f. monstrosa
Synonym:Opuntia subulata f. monstrosa
Synonym:Austrocylindropuntia subulata f. monstrose
Synonym:Opuntia subulata f. monstrose

Category:

Cactus and Succulents

Height:

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

Spacing:

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)

Sun Exposure:

Sun to Partial Shade

Light Shade

Danger:

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

Bloom Color:

Red

Bloom Time:

Late Spring/Early Summer

Foliage:

Deciduous

Succulent

Other details:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Suitable for growing in containers

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

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Phoenix, Arizona

Carlsbad, California

Carmichael, California

La Jolla, California

San Diego, California

San Francisco, California

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Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Nov 5, 2004, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

Another synonym is: Cylindropuntia subulata f. monstrose

This Monstrosa does not have the little nubs on the areoles like Austrocylindropuntia cylindrica f. monstrosa has