Monarch Nectar Plant Guides
A series of regional guides to native, evidence-based monarch attracting nectar plants available for 15 regions in the U.S. Western guides are listed below:
Milkweed Guides
Western Monarch Milkweed Mapper includes species profiles for each milkweed species. You can search these by state here.
Roadside Habitat for Monarchs: Milkweed Guides
Roadside Habitat for Monarchs: Milkweeds of California
Roadside Habitat for Monarchs: Milkweeds of ID, OR & WA
Roadside Habitat for Monarchs: Milkweeds of NV & UT
Roadside Habitat for Monarchs: Milkweeds of AZ & NM
Roadside Habitat for Monarchs: Milkweeds of Colorado
Roadside Habitat for Monarchs: Milkweeds of MT & WY
Check out the Monarch Joint Venture (MJV) for a variety of of monarch and milkweed fact sheets and other resources. MJV is a partnership of federal and state agencies, non-governmental organizations, and academic programs that are working together to support and coordinate efforts to protect the monarch migration across the lower 48 United States.
