Help, I purchased a beautiful black eyed susan vine, it did beautifully for awhile. This plant grew faster than anything I have ever seen before. I checked online for care and followed what I read. At about the begining of August the plant started to wilt from the newest growth. Produced no more flowers, and it was covered, and the flower buds that were on the plant all dried and fell off. I fed it. Does anyone have any idea what could be wrong. Perhaps the heat?? Valery