Planting along a fence is very easy. The main thing to remember is that soil near the fence ver dry and usually poor. Dig the trench much wider than you think. When you plant your roses or other climbers dig in some compost and don’t plant too close to the fence. Plants need some air to circulate around them. Newly planted things will need plenty of water in the first year. If you are unable to water as often as necessary cover the soil with ornamental bark. This stops evaporation and will also break down and be taken into,the soil as nourishment.
I like David Austen Roses. Even though they are a bit more expensive, they save money in the long run. You need less of them to cover a wall. They are well established with good root systems when sent out and will cover your fence quickly, they have a very helpful phone service and after sales guarantee. I don’t bother with their stuff they try to sell you, the granules etc. I give mine a to tomato feed in the summer.
Climbing roses will go straight up, rambling roses will travel along the fence, and bush roses will be form a bush.
I would add in a coulple of summer Jasmine as they will cover the fence when the roses are bare, and give a wonderful sent.
Other good border plants are, Weigelia, Philadelphus and forsythia. Dead easy to grow and will give you lots of colour all year. If budget is an issue, climbing nasturtiums are great. They thrive in poor soil and neglect.
Have a look at Wilko. I bought loads of plants last year from them and they were amazing.