Posted: 23/07/2016 at 11:21
Can anyone please advise me on how to prune and rejuvenate my Rosa 'New Dawn'. Whilst I have had plenty of flowers again this year they all seemed to be growing on very thin and whispy stems with very little foliage and what foliage there is is now being attacked by mildew and blackspot.
it is planted a little away from my north-easterly garden wall and is in sunlight for most of the day.
i look at photographs that others post and mine definately looks like the runt of the litter.
Please help !!