Green Antelope Horn
image by theroadhere/Flickr.com
Green antelope horn is a perennial herb that grows to be between 12 and 24 inches tall. It's the asperula species, which is part of the Asclepiadaceae family. The flowers are pale green or white in color and bloom between late spring and early fall, from April to September. The flowers are arranged in clusters and are tolerant to cold and heat.
Choose a planting site that is in full sun. Green antelope horn grows well in rich or poor soils, so there's no need to worry about soil quality.
Plant green antelope horn in the fall. Dig holes with the tip of a shovel or with your fingertip. Make them about an inch deep. Space them 12 to 15 inches apart.
Place a seed in each hole. Cover with soil and pack it down, then water.
Keep the soil consistently moist. Check it often with your finger. If it feels like it's drying out, add more water. People who live in drier climates should water it every other day. Don't let the soil dry out between waterings.
Expect the plant to grow the following spring in an open, spreading form. For a blanket effect, plant green antelope horn close together.