I was stupid and this spring decided a newly planted rose from last year didn't need pruning back. Now it's continued to grow on ast years growth and is grown quite tall but the branches as they're quite long don't seem strong enough to hold themselves up, it's produced 4 massive flowers so far but it seems they're too heavy for the plant. Also I can't see any other buds growing so worried it won't produce many flowers. I feel now I should have pruned it back so it would have set new growth and therefore the stems wouldn't be so long now. If I prune it back will it not flower at all this year? Or am I best to give it some support with a stake etc just for this year and then trim it back at the end of summer? Thanks for any advice you can give 