Some mold trying to take over a plant

[lycomania]

I think this stuff must have sprung up within 2 or 3 days. I usually notice problems pretty quickly, but I did get busy there. I've never seen this in my garden anywhere.

We've been having awful non-stop cloudy, rainy, hot, humid conditions for what seems like weeks now in Southern NH.

I was able to spray it off with a hose. Then I trimmed all lower leaves along my whole row, removed the plastic, and put some bark mulch down. I *think* it's going to be okay lol.