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Rush Milkweed

Asclepias subulata

Details & Attributes


Plant Type(s) Perennial
Native to Arizona Yes!
Water Needs Low
Sun Full sun, partial shade
Pollinators Butterflies, Tarantula Hawk Wasps
Has Spines No
Size
In relative feet, width by height
3 × 4
Freeze Tolerant No
Flowering Season All Year
Flower Color Yellow
Minimum Temperature Range 20 °F
Leaf Description Leaves very narrow and long; they are usually shed before the plant blooms.
Fruit A dry capsule that stays on the stalk.
Longevity
In years
5
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Ethnobotany Considered poisonous now. Was used as a cathartic, an emetic to cause vomiting, an eye medicine, for stomach disorders, for many other ailments.
Description An extremely drought and heat tolerant milkweed which thrives in well draining soil. The plant has virtually no leaves at maturity; its tough clumps of green stems carry out the photosynthesis it needs to thrive. This plant is an excellent addition to a cactus and succulent garden. Also makes a good planting for areas with extreme exposure and reflected heat.