I planted a Star Jasmine last May together with a Clematis Montana. Neither of which has done anything! Should I prune and what should I do exactly?
I would advise leaving them alone - their priority is to get a good root system developed first, which will support the future top growth. Without a good root system you'll have a rubbish plant.
I suggest a light feed of Fish Blood and Bone, a mulch with some compost/well rotted manure/soil conditioner and a bit of patience, then stand well back .........
I can't help with the jasmine but I do find that clematis can spend a year or two getting their roots settled before they put on significant growth and flowers. They also need careful planting - deeper than they were in their original pot - and plenty of food and water as they tend to be hungry, thirsty plants.
How and where did you plant it? Deep? In a pot? In the soil?
Clematis montana are classed as group 1 for pruning. This simply means you only prune them after flowering and only if they need to be kept in bounds. A young one should nt yet need pruning but yu may want to guide any new shoots it makes as horizontally or diagonally as possible to encourage extra shoots and flowers.
Clematis generally appreciate a generous dollop of slow release specialist clematis food in spring but rose or tomato food will do. Occasional liquid feeds of rose or tomato food between spring and the end of June will help too.
I PLANTED BOTH IN A RAISED BED FOLLOWING THE INSTRUCTIONS AND TIED THE BRANCHES AS THEY LAY. I WATERED A LOT WHEN PLANTED BUT SINCE HAVE DONE NOTHING DUE TO MY INCAPACITY; ( MAJOR SURGERY). SO NOW IS THE FIRST TIME I'M ABLE TO VISIT THE GARDEN AND WAS SO DISAPPOINTED TO SEE NOTHING HAPPENING....
Have either of them got any leaves on or growing buds?