Milkweeds, as most know, are the host plant for Monarch Butterflies. A host plant is another way of saying caterpillar food plant.

Monarchs deposit eggs on milkweed plants. Some milkweeds are more productive than other species. For the Northeast region, the most productive milkweed is Common Milkweed (Asclepias syriaca). The second most productive is Marsh Milkweed (Asclepias incarnata), also known as Swamp Milkweed.

What is meant by productive? When given a choice, the females choose these plants over other species of milkweed and the caterpillars have the greatest success rate. In our own butterfly garden and at at my client’s habitat gardens, I grow both Common and Marsh side-by-side. The females flit from one plant to the next, freely depositing eggs on both species.

Please consider making a tax deductible donation, or becoming an underwriter, to bring our Monarch Butterfly documentary Beauty on the Wing: Life Story of the Monarch Butterfly to American Public Television. To Learn More go here and to DONATE go here. Thank you!

With thanks and gratitude to our growing list of wonderful folks for their kind contributions

Lauren Mercadante, Jonathan and Sally Golding, James Masciarelli, Pete and Bobbi Kovner, Karrie Klaus (Boston), Sally Jackson, Marion Frost (Ipswich), JoeAnn Hart and Gordon Baird, Joy Van Buskirk (Florida), Lillian and Craig Olmstead, Suki and Fil Agusti (Rockport), Janis Bell, Nina Groppo, Nubar Alexanian, Marguerite Matera, Claudia Bermudez, Thomas Hauck, Judith Foley (Woburn), Jane Paznik-Bondarin (New York), Paul Vassallo (Beverly), Stella Martin, Liv Hauck (California), Julia Williams Robinson (Minnesota), Cynthia Dunn, Diane Gustin, Heidi Shiver (Pennsylvania), John Ronan, Karen Maslow,Fernando Arriaga (Mexico City), Holly Nipperus (Arizona), Kristina Gale (California), Maggie Debbie, Kate and Peter Van Demark (Rockport), Mia Nehme (Beverly), Chicki Hollet, Alice Gardner (Beverly), Therese Desmarais (Rockport), Jennie Meyer, Kathy Gerdon Archer (Beverly), Melissa Weigand (Salem), Duncan Todd (Lexington), Catherine Ryan, Linda Bouchard (Danvers), Elaine Mosesian, Paul Wegzyn (Ipswich), Catherine Bayliss, Jan Waldman (Swampscott), Alessandra Borges (Rhode Island), Nancy Mattern (New Mexico), Carolyn Constable (Pennsylvania), and Ian Gardiner.