Didierea Species, Madagascar Cactus, Octopus Tree

Didiereamadagascariensis

Genus
Didierea (did-ee-AIR-ee-uh)
Species
madagascariensis (mad-uh-gas-KAR-ee-EN-sis)
Synonym
Didierea mirabilis
Sun Exposure
Full Sun
Foliage
Evergreen
Deciduous
Height
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)
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 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
Bloom Time
Other Details
Category
Shrubs
Trees
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Can be grown as an annual
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 seed; direct sow after last frost
Seed Collecting
Regional

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

Bostonia, California

Bradenton, Florida

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Gardener's Notes:

2
positives
0
neutral
0
negative
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L
(Zone 11) | January 2016 | positive

Maintained in pot during 5 years and then planted in the ground in a very well drained soil, on a slope. Its growth is fast enough (it re...Read More

P
Acton, CA (Zone 8b) | October 2004 | positive

In native southern Madagascar, these become tall, spiny trees with long, drooping and twisting branches. Here in so cal, the foliage is ...Read More

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