wow I can see the powdery mildew on the leaves. Try to spray the Serenade at least on the affected areas mixed according to the directions.

Take a look at the trichs and see if they are close to being done. I would just keep an eye on them and use the spray, hope for the best. If you see them going bad cut them and save what you can.
It looks like the plants are being shaded from trees?
You'll want full sun for your next grow or you can try to start them early or get a greenhouse and a space heater.
Hopefully the weather will cooperate. Good luck :thumbsup: