Welcome to the forum.
After reading all the post, I believe it is the grass if you are adding it before it drys out. In the summer and when plants are young and tender you cannot add fresh grass clippings. It will wilt the young plants. Pull the grass clippings back from around the plants and the root lines. When it cools down you can push it back around the plants.
Crabbergirl I think you nailed it
To early to be for sure but I do believe the grass was the culprit here. Normally by now the spring rains have stopped and your looking at 1" or rain a month; and were watering and the water bill triples
We've done got .75" of rain since midnight and its 11 AM but I pulled the grass back and removed it from most of the plants yesterday and were looking better.
Question:
I'm being told the Fertilizer/pre-emergent combo product I put on the lawn back in March could now be transferring in the grass clippings now to the garden? I find that hard to believe so could there be any truth to that? And if so would it even do this to the garden?