Roses – A Question
I've been out to check my budding rose bush this morning, and some of the leaves are covered in little black spots. It seems healthy enough and hasn't been munched by anything as far as I can tell; also there's no sign of insects. Any idea what's causing this? I can see no fungus either and am not certain if it's just ageing leaves or some form of blight. Maybe it's just not overly keen on clay soil (although it's growing well)? I'm in the south-east of England if that's any help at all. Thanks in advance!