looking for advice on sick lantana
I noticed recently that the lantana plants in my front yard seem to be affected by powdery mildew - many of the leaves also have black spots (is that a result of the mildew or something different?).
I heard these types of problems occur more frequently when the lantana is growing in a shaded area. These plants are in shade for half of the day -- full sun in the morning hours. I trimmed off much of the affected areas on the plants though I wasn't able to get everything.
Is it worth it to try and see if I can nurse the plants back to health now that they've been thinned out some, or does it really just need to be in a place that gets full sun for a longer portion of the day?
Would you be able to suggest a plant that would do well in a more shaded area? I live in San Diego (Normal Heights) and would love to use plants that are more native to the area -- especially ones that would be attractive to hummingbirds and butterflies.