Answer: I suspect that the little lantanas you purchased came directly from a greenhouse and then spent some time in the back of a truck during and probably some time indoors at Fry's. They just weren't ready for our hot afternoon sunshine. If you still have any new little lantanas left, put them in a bright location outdoors but out of direct sunshine. After they've been protected for 3-4 days, set them where they will get an hour or two of morning sun. Keep exposing them to more and more sunshine until they are spending all day in the sun. Since they'll still be in pots during this acclimation period, protect the pots and the root systems from hot sunshine - otherwise the roots will bake. If you can place an object in front of the pots to shield them from the sun but still allow the tops of the plants to be in sun, it will help the roots. Rocks or other pots make good shields.
Hope this helps!
Q&A Library Searching Tips