Posted: 16/02/2015 at 21:33
I think for a north facing wall or fence you want someting that flowers later in the season when it's warm enough to be out there to enjoy it. I have Minuet, Caerulea Luxurians, Nelly Moser, Rahvarinne and Blue Angel (Blekitny Athol) on a north facing wall.
Betty Corning has bell shaped flowers and would do well on an east or west facing aspect and is scented. Other bell shaped clems that would like it are Gravetye Beauty, Pagoda and Princess Diana. Try also Red Ballon which is always covered in insects in my garden.
A great deal depends on your flower colour and shape preferences. Just make sure that if you plant more than one clem to cover the same area that they are from the same pruning group or things will get very tangled indeed.
Whatever you choose, give the new clems a good soak befor eplanting and give them a hole at least 4 to 6" deeper than the pot they came in and back fill with plenty of garden compost and/or well rotted manure as clematis are hungry, thirsty plants. Give them a spring feed of slow release clematis food and a drink of tomato food every now and again betwen bud burst and flowering.
It may seem painful but you should cut new clems back to a couple of buds on each stem at planting time and nurture them as they can take a year or so to get their roots settled in before they flourish up top. It will be worth it.