I suppose you could be overwatering it, and the yellow leaves could be the first sign of it developing root rot or perhaps a leaf spot disease. I guess I would cut back on the watering, and see what happens. They definitely do fine in pretty dry conditions, so I wouldn't worry about watering an established plant until you get into a pretty severe drought situation.

Thank you denninmi, for all 3 replies....lol Thinking back to last year and the year before, I never watered them that much, not sure why I began this year other than the bush starting to look a little droopy in this extremely hot heat.

Linda

You might have spider mites on it, with the warm summer and dry spring spider mites have been a real problem.

Plants can droop in the middle of hot afternoons even if they don't need more water. A shrub that's several years old shouldn't need extra water at all. Check in the morning to see if it really is wilty. They grow fine here where it's that hot every summer. You're just lucky you get to call the heat "a wave!" Here, it's a season. LOL!

I haven't considered spider mites -- I'll have to check mine out and see if they are attacking them. With the dry, hot weather, I am seeing a TON of mites in the general landscape, on everything from weeds to trees. I've got about 40 butterfly bushes going now, so if mites like them I'm sure at least some of them will have them.

I don't know what is up with the multiple posts -- I posted a reply on one of these forums the other day and it showed up 5 times. Of course, if these forums had a decent user interface like many do, we would have the ability to edit, to delete, etc. Funny, iVillage is owned by NBC/Universal, a very large company, and they can't manage to upgrade their software past the level of about 1995/1996 when I first discovered the Internet. I guess it's because they're broke and no one watches their network anymore?