Antelope Horns

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Asclepias asperula (Antelope-horns) is a clump-forming, perennial herb that thrives in well-drained, rocky or sandy soils and adapts well to full sun. Reaching heights of 1-2 feet, it features narrow, lance-shaped leaves and densely hairy stems. This plant is known for its distinctive green and white flower clusters that bloom heavily in the spring and sporadically through fall. As the seed follicles curve and grow, they resemble antelope horns, giving the plant its common name. Asclepias asperula is a vital host plant for Monarch and Queen butterfly caterpillars, attracting pollinators throughout the growing season. Scientific Name: Asclepias asperulaOrigin: Central U.S. to Texas, west to Idaho and CaliforniaHeight: 1-2 feetSpread: 12-24 inchesLight: Full SunWater Needs: MediumUSDA Zones: 7-11Bloom Dates: March to October Show more