Hibiscus: Ailing Hibiscus, 0 by gessieviolet

gessieviolet wrote:
I have 2 hibiscus that survive in my flower border. This one has been growing for about 4 years. It usually grows beautifully; this year the new foliage is looking like this. Any suggestion, this is one of my wife's favorite plants, I would hate to lose it.

I see no evidence of spider webbing on foliage; the new leaves just cup and curl. Notice this morning buds seem to be forming as usual.