Quick answer: 8 species in the directory match "Monarch host plants", 6 with a live listing as of 24 Oct 2026.
All 8 species
Each entry links to the plant's profile with its native states and buying note.
- Antelope-horns milkweed Asclepias asperula · 2 states
- Butterflyweed Asclepias tuberosa · 40 states
- Narrowleaf milkweed Asclepias fascicularis · 6 states
- Rush milkweed Asclepias subulata · 3 states
- Showy milkweed Asclepias speciosa · 17 states
- Swamp milkweed Asclepias incarnata · 37 states
- Whorled milkweed Asclepias verticillata · 30 states
- Woollypod milkweed Asclepias eriocarpa · 1 states