Posted: 20/04/2012 at 14:38
Hiya Lucy3,when you've repotted the clematis,leave a 2inch gap at the top of the pot and fill with pebbles or other like crushed slate or something similar...the stones act as a mulch as well as in the summer the stones will absorb the suns heat during the day and act like a radiator at night(All Clematis love their roots warm)Good luck.