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..