Quick answer: 2 monarch host plants are native to Montana, 2 with a live listing as of 24 Oct 2026.
2 species
- Showy milkweed Asclepias speciosa · 17 states
- Swamp milkweed Asclepias incarnata · 37 states
Quick answer: 2 monarch host plants are native to Montana, 2 with a live listing as of 24 Oct 2026.