Photo by Melody

PlantFiles: Cooper's Aloe, isiPutumane
Aloe cooperi

Family: Aloaceae
Genus: Aloe (AL-oh) (Info)
Species: cooperi (koo-PER-ee) (Info)

One vendor has this plant for sale.

5 members have or want this plant for trade.

Cactus and Succulents

Unknown - Tell us

9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
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

Unknown - Tell us

Bloom Color:
Pale Pink
Pale Green

Bloom Time:
Mid Summer


Other details:
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive ottopaul On Nov 5, 2010, ottopaul from Brookings, OR wrote:

The plant grows well along the southern Oregon Coast with cool summers and regular water. Multiplies rapidly and produces 2 flower spikes in late summer. Reduces itself in winter, but returns stronger each subsequent year. Last winter's low was 18 degrees.

Positive Porphyrostachys On Aug 30, 2009, Porphyrostachys from Portland, OR (Zone 8b) wrote:

Oddly tolerant of the heat as a potted plant in Arizona. Of all the grass Aloes I've attempted to grow, this one is the fastest and most reliable with flowers. Being in a pot, the frost of 2007 eliminated it from my collection, but I am curious to try it in a raised bed under shade cloth. Currently, this plant is in the shade of trees - not a full sun lover here.

Neutral palmbob On Jul 10, 2004, palmbob from Acton, CA (Zone 8b) wrote:

grass aloe from S Africa- I got one through mail order and it has not grown much in the last 4 years, but it supposedly can take full sun and intense heat well... I find that it does much better with some shade, particularly here in super-hot, inland southern California. Sun seems to beat it down and wither it. Has thin succulent leaves with a few white spots - very upright habit. Some plants 'shrink' in winter, particularly if dry, too, but often come back even stronger the next spring. Eventually older plants can lose the distichous leaf pattern and grow in a normal swirl, but still very upright.

Flowers in mid to late summer, usually one per plant and about 2' tall (barely above the leaf line) and bicolored (olive green tips and orange bases).

Like most other grass aloes, Aloe cooperi is not a fan of baking hot, summer sun (found out the hard way). I personally find this a difficult aloe to keep alive for more than a few years. Mine have flowered wonderfully, but then they melt. Perhaps these are 'somewhat monocarpic'?


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

Mesa, Arizona
Reseda, California
Spring Valley, California
Thousand Oaks, California
Raleigh, North Carolina
Brookings, Oregon

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