By Boundaryman
Lancashire,
United Kingdom 
Any suggestions how to prevent Clematis wilt.?
also reason's for a Clematis not to show signs of flower
buds but plenty of stem and leaf growth.
The Clematis on the right is in the same large container,gets same water & feed etc.
The Clematis in question is a "Barbara Jackman" and has flowered in previous years.
30 May, 2011
The way to avoid clematis wilt is to plant deeper than the pot you had it in in the beginning and plant at a 45 degree angle, the clematis thats not showing signs of flowering might be it need light prunning late winter early spring, its comes under group 2 prunning.
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=346
31 May, 2011