- Lot size: 10
- Container: Large Tube Perennial
- Mature Height: To 3 feet
- Exposure: Full sun
- Soil: Moist
Milkweed (Asclepias spp.) plants are offered for those wishing to foster Monarch Butterflies, milkweed being the food of Monarch caterpillars. The exact species of this offering is undetermined. Information above is for Asclepias speciosa, one of several milkweed species native to Colorado. Range is from plains to montane zones, approximately 4,000 to 10,000 feet. Plant may be poisonous to humans. Milky sap may irritate the skin.