Clematis Montana 'Pink Pefection@
I planted this clematis in April 2011 and it grew well. This year it flowered late and has made no growth at all even though it isn't dead and has leaves on it. Has anyone any suggestions as to what is wrong? I had a montana rubens for nearly 40 years and it was superb but had to be dug up due to revamping of garden. It's not as if I've never grown one before!!