Jess is in the Garden
Having had many clematis varieties, I can honestly say this is my favourite. I give it the Valentine's Day massacre (prune it hard back to the first set of good buds) on February 14th, and from that it then grows to a whopping 3m plus, every year, flowering absolutely all over, for a long time.
The flowers are almost pale blue and light up a large fence in my garden.
Hardly gets ill at all - I spray it regularly with SB Invigorator Spray all Spring, to keep it disease-free, but it seems much tougher than my other viticella. Nelly Moser.