05/08/2026
Happy Friday from Asclepias Acres!
If you live near the coast, you have probably noticed swarms of these butterflies lately. They are migratory butterflies called Great Southern Whites (Ascia monuste). They migrate north in spring and summer and south in winter. Unlike Monarchs, their migration is described as "directionless". They wander in search of food sources to support their large population. While we love being immersed in swarms of butterflies on the coast, farmers consider them a nuisance due to the significant damage they cause to crops in the mustard family (brassicaceae).
Their host plants are:
Virginia pepperweed
Coastal searocket
Saltwort
Cruciferous plants (like cabbages, broccoli, kale, radishes)
Favorite nectar plants:
Lantana
Verbena
Seaside oxeye daisy
Christmas berry
Simpson's stopper
This image is a Great Southern White at Cape Canaveral nectaring on the state-threatened species, Simpson's stopper.
FANN
Florida Wildflower Foundation
Florida Native Plant Society
Southeast Volusia Audubon
Pawpaw Chapter FNPS
New Smyrna Beach Garden Club
The Garden Club of DeLand
Hacienda del Rio Garden Club
Friends of the Marine Science Center