Asclepias cur. 'Red Butterfly', also known as Tropical Milkweed, is a darker red-flowered form of the typically orange and yellow Butterfly Weed. A good plant mixed with other tall perennials and the long stems are excellent for cutting. Cut back in the fall after all caterpillars are gone (often left leafless by them) but be wary of the milky sap, which can cause irritation and injury to eyes. An excellent butterfly nectar plant and attracts Monarch butterflies as an egg laying host as milkweeds are the sole food source for Monarch caterpillars (don't remove those fantastic large-horned, black and yellow-striped caterpillars). This species is native to South America but has become a naturalized weed in tropical and subtropical pastures, fields and disturbed areas throughout the world, including central and southern Florida.