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Threadleaf Milkweed, Pineleaf Milkweed
Scientific Name: Asclepias linaria Cav.
Family: Apocynaceae

Threadleaf Milkweed at the Desert Botanical Garden in Phoenix
Recommended Temperature Zone:
sunset: 10-13
USDA: 9-11

Heat Tolerance: Good

Sun Exposure: Full sun to part sun

Origin: Southern Arizona to Mexico, on rocky slopes, at 1500 to 6000 feet elevation (450-1800 m)

Growth Habits: Shrubby perennial, up to 3 feet tall (1 m), 3 feet spread (1 m); needle-like leaves, 1.5 inches long (4 cm)

Watering Needs: Moderate water to keep good appearance, needs good drainage

Propagation: Seeds

Like other milkweeds, this asclepias is a food source to the monarch butterflies.

Blooming Habits:
The Threadleaf Milkweed has decorative flowers and seed pods over a long period of time. The flower clusters are 2 inches wide (5 cm), greenish-white with traces of burgundy.

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.

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