Two years ago I bought a boxed Niobe from a box store. It bloomed for the first time this spring. Definitely not Niobe. It's pale pink - almost white. It bloomed again last week on new growth. I don't expect anyone to identify this clematis from my description, but what I need to know is how to prune a clematis that reblooms in eary July on new growth. Do I prune it after its first bloom to encourage more new growth, in fall to get more growth in the spring? Never? Also, tips on when to fertilize would be helpful. Any help is appreciated. Thanks.