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Robin Tree Cactus, Key Tree Cactus

Pilosocereuspolygonus

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Family
Cactaceae (kak-TAY-see-ee)
Info
Genus
Pilosocereus (pil-oh-so-KER-ee-us)
Info
Species
polygonus (pol-LIG-go-nus)
Info
Synonym
Pilosocereus robinii
Cereus robinii
Cephalocereus deeringii
Cephalocereus keyensis
Pilosocereus bahamensis
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage

Unknown - Tell us

Height
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
Spacing
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)
Hardiness
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
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color

Unknown - Tell us

Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow
Can be grown as an annual
Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

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
Properly cleaned, seed can be successfully stored
Regional

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

Key Largo, Florida

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2 members have or want this plant for trade

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Xenomorf
Phoenix, AZ (Zone 9b) | September 2006 | neutral

More synonyms of this plant are Cephalocereus robinii, Pilosocereus keyensis, Cereus keyensis, Pilocereus keyensis, Pilosocereus robin...Read More

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