Quick answer: 3 monarch host plants are native to Colorado, 3 with a live listing as of 24 Oct 2026.
3 species
- Butterflyweed Asclepias tuberosa · 40 states
- Showy milkweed Asclepias speciosa · 17 states
- Swamp milkweed Asclepias incarnata · 37 states
Quick answer: 3 monarch host plants are native to Colorado, 3 with a live listing as of 24 Oct 2026.