Photo by Melody

PlantFiles: Dune Aloe
Aloe thraskii

Family: Aloaceae
Genus: Aloe (AL-oh) (Info)
Species: thraskii (THRAS-kee-eye) (Info)

10 members have or want this plant for trade.

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Cactus and Succulents

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)

24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

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


Bloom Color:
Gold (Yellow-Orange)

Bloom Time:
Mid Winter

Grown for foliage

Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Provides winter interest

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
From seed; sow indoors before last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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There are a total of 20 photos.
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1 positive
1 neutral
No negatives

Gardeners' Notes:

Neutral baiissatva On Sep 8, 2008, baiissatva from Dunedin
New Zealand wrote:

Another spectacular tree aloe, doing very well here in northern regions of coastal New Zealand, tolerating some frost and growing to astonishing proportions in our wet winters, so dont be afraid to plant this in a high-rainfall area. Will handle very harsh sunlight, sometimes taking on a coppery leaf sheen (we basically have no ozone layer down here so UV levels are off the scale, probably worse than anyone in the US would experience.)
Grows on steep slopes in native habitat, so a great choice for a hillside garden, roots being very tenacious. Birds adore the flowers.

Down here in Dunedin (admittedly at the very edge of their viable range) I have had a lot of trouble getting them beyond the juvenile stage, even in pots. Which is maddening, because they're pretty tough once they're past a certain size. I know of no particular reason for these failures, and have little problem growing (theoretically) more tender tree aloes- vaombe, vaotsanda, rupestris; I have a large barberae in the ground, darn it!
And I'm not alone in this, judging from interweb reports.

If you can grow them, please don't take them for granted.

See some of our plants and gardenalia at The Blackthorn

Positive palmbob On Jan 24, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Majestic tree aloe with profuse, thick, yellow-orange flowers in mid winter. Has tyipcal arching, grooved aloe leaves with light green coloration. Can be confused with Aloe vanballenii when young, and Aloes angelica and alooides as mature plant. Flowers look different, though. Pretty fast grower and appreciates a lot of water in warmer weather (tolerates water in cold winters, too, in well draining soil). South AFrican native.

Eventually these seem to get too tall, and all eventually fall over. Most of these show signs of root or trunk rot. They either outgrow their food supply, stems get too tall to transport stuff back and forth, or roots rot.


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

Casa De Oro-mount Helix, California
Reseda, California
Spring Valley, California
Thousand Oaks, California
Vista, California
Palm Bay, Florida

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