Looking after Roses:
As well as pruning, mentioned above, Roses require feeding, preferably with a good quality dedicated Rose Fetilizer. Because of all the pruning roses rquire, they need a lot of feeding to provide for the new growth.
Slow release Rose Fertilizer is even better. As the name implies, fertilizer is released in an even controlled manner over a period of time.
Roses are also prone to Aphid attack, especially Greenfly, so check regularly and spray if necessary.
Use a spray such as Roseclear which kills greenfly but not beneficial insects like Ladybirds (which eat Greenfly).
Roses are also prone to fungal infections, especially Blackspot, so check regularly and spray if necessary.
Use a spray such as Roseclear which also kills Blackspot and other common fungi that affect Roses..