Clematis Polish Spirit
I have a lilac tree, roughly 12' tall. I've left the dead heads on as I can't reach most of them anyway. And, I have a small Polish Spirit plant in a small plastic pot (part of a final day bargain lot at the Harrogate Autumn Flower Show). If I plant it hoping it will grow through my lilac and provide colour after the lilac flowers are over, will it be easy to remove the top growth from the tree when I eventually prune the clematis down to 8" in March 2015? Or do I risk damaging the new lilac buds in the process?