Some of the leaves on my perennial lantana (Miss Huff I think) are turning a bicolor of white and green. Not powdery mildew for sure. But what would cause the leaves to turn like that although only a few are bicolor at this time? Also, she is not blooming at all right now but did earlier in the season. Would that have any effect on leaf color?
There are many hybrid varieties of Lantana.
Hybrid plants can often revert.
Here is an image of a variegated Lantana.