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Asperula Asclepias Plant

  • - Antelope Horns Milkweed
  • - Height: 12-18 inches
  • - Hardiness Zone: 3-9
  • - Exposure: Full Sun
  • - Bloom Time: June-September
  • - Each Quart contains 1 Asperula Asclepias Plant
Plant Features

Asperula Asclepias produces clumps of upright stems with a sprawling habit and beautiful multi-colored flowers that pollinators cannot get enough of. The long narrow leaves begin to curve as they grow in length, somewhat resembling antelope horns. Asperula must have well-drained soils to thrive. It is native to the western United States. 

Common Names: antelope-horns, spider milkweed, green-flowered milkweed, spider antelope-horns, antelope horns.

Asperula Asclepias Plant Care Instructions: Keep the plant well-watered for the first 3-4 weeks after transplanting. After that, only water if the plant starts looking droopy. Deadheading the first flush of flowers promotes additional blooms. If you don't want the plant to self-seed, remove all flowers once they are finished blooming. Plants can be cut back to the ground once they drop their leaves. Spring is a good time to fertilize.

Attribute name Attribute value
Plant Needs
Sunlight 6+ hours
Overwinter Zones 3, 4, 5, 6, 7, 8, 9
Soil Moisture Moist to Dry
Soil Properties Well-drained
Tolerates Sandy soil
Fertilizer When transplanted and then once every Spring
Attribute name Attribute value
Plant Characteristics
Height Category Medium
Mature Spread 12-18 inches
Habit Upright
Flower Color White
Foliage Color Green
Attracts Bees, Butterflies, Hummingbirds
Features Heat tolerant
Garden Styles Butterfly Garden, Pollinator Garden, Prairie Garden
Plant Used for Educational Value, Water Conservation
Critter Resistance Deer, Rabbit
Pet Friendly No
Plant Type Open-Pollinated