I'm new to rose tending, yet the home I now own must have at least 15
separate ones, both climbing and bushes. I was here last year in the Fall
and noted they didn't seem as healthy as I thought they should be. In fact,
some of the leaves looked down right 'sick'. Are there signs I can watch
early in the season, late Spring and summer for that would indicate
problems? I'm in northern Colorado, on the eastern plains. Thanks.