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Desert milkweed, Ajamente
Scientific Name: Asclepias subulata Decne.
Synonym:
Family: Asclepiadaceae
Desert milkweed, Ajamente (Asclepias  subulata) Recommended Temperature Zone:
sunset: 11-13
USDA: 9-11

Frost Tolerance: Hardy to 20F (-6C)

Sun Exposure: Full sun to part sun, tolerates reflected heat

Origin: Sonoran desert: USA (California, Nevada, Arizona) and Mexico (Baja California, Sonora, Sinaloa) along desert washes, below 3000 feet elevation (900 m)

Growth Habits: Evergreen, small to medium shrub, 2 to 5 feet tall (0.6-1.5 m), 4 feet spread (1.2 m), 3 feet wide; gray green, generally leafless, stems, containing a milky sap; short-lived linear stems, up to 2 inches long (5 cm)

Watering Needs: Little to no water when established, needs good drainage

Propagation: Easy by seeds


The leaves of the desert milkweed do not last very long, and the clusters of greyish-green stems are the most characteristic appearance of this plant. It is a good plant for the sides of a swimming pool.
The desert milkweed is an important food source for the monarch butterflies.

Cultural Practices:
The desert milkweed is sensitive to aphids.

Blooming Habits:
Clusters of yellowish or cream flowers in spring to fall. They are followed by a follicle that opens when mature, releasing large quantities of seeds attached to long silky hairs.

Fruiting Habits:


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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

1998-2005 Philippe Faucon, All Rights Reserved.