So I have a Niobe clematis, it's on it's 3rd summer and it was doing fantastic this year. It has about 20 vines coming up from the ground and over 100 blooms, very thick and lush. About a week ago, while in full bloom, 2 entire vines from the ground up started wilting. First it was all the flowers that drooped and died (even the ones that hadn't bloomed yet), now all the leaves are getting spotty and droopy. Is this Clematis wilt? What can I do to save the plant?