Tropical Milkweed Asclepias Curassavica is
In Florida, this plant is
"Dr. Jaret Daniels of the University of Florida believe that the spread of the non-native tropical milkweed may be causing monarch populations to persist longer than they naturally would, making them more vulnerable to OE and thus presenting a
While not on the Florida Exotic Pest Plant Council (FLEPPC) list (yet), this plant has spread into natural areas and is often seen on roadsides and in open pastures. It is commonly sold and frequently mistaken as a native species.
Quote from Florida Wildflower Foundation:
"...prolonged breeding can foster
The Monarch Joint Venture (MJV) is a partnership of federal and state agencies, non-governmental organizations, businesses, and academic programs working together to protect the monarch migration across the United States.
Why We No Longer Carry Non-Native Tropical Milkweed
The article includes information on native milkweeds
- Tropical Milkweed—a No-Grow
- Monarch Nectar Plants: Florida
- Roadside Milkweeds of the Southeast - download PDF
- 2019 Three New Research Papers - scroll down several paragraphs to find research summaries
Monarch Joint Venture
Our mission is to protect monarchs and their migration by collaborating with partners to deliver habitat conservation, education, and science across the United States."
"We think that the
Commercial Use of Curassavica
Monarch Butterfly Garden LLC Web site with advertisements summarizes the situation. The latest link date is 2016. This site sells butterfly products. Calls information coming out about curassavica a "smear attack".
Cutting back once in the fall does eliminate the plant from spreading to natural areas.
North American Butterfly Association (NABA)
Formed in 1993, the North American Butterfly Association (NABA), a not-for-profit membership organization, is the major North American organization promoting the conservation of butterflies and their habitat. NABA focuses its efforts on educating the public about the importance of butterflies and their habitats and on conserving butterflies, both to the benefit of humans and our environment.
In recent years, the focus of the program has highlighted the need to use regionally native plants when developing habitats for butterflies. NABA’s regional butterfly garden guides, one of the primary features of the program, are in the process of being updated to include regionally native plants as their primary focus. 2017
- Butterfly plants for Tampa, Florida
- Northern Florida
- Tropical Milkweed - Pros and Cons, How to Grow
How This Popular Garden Plant May Spread Parasites That Harm Monarchs Includes many ads.
Texas Butterfly Ranch