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

Show Larger Picture 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

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.