Tropical Milkweed (Asclepias curassavica)
There have been several articles in the news recently about Asclepias curassavica also
known by the common names of Tropical Milkweed, Bloodflower, Mexican Milkweed or sometimes mislabeled as
Butterflyweed. This milkweed has naturalized in many of the southern states (especially California, Texas
and Florida) but it is only an irrigated garden speciality milkweed in Arizona. Some scientists have expressed
concern that Asclepias curassavica can stop monarchs from migrating and increase disease. Be aware this is
only a concern in areas that do not regularly have a hard freeze. Please read these two
links regarding information about Asclepias curassavica so you can stay informed.
Q&A about research related to tropical milkweed and monarch parasites
Tropical Milkweed in Arizona: Friend or Foe?