Looks relatively normal to me, possibly a transition between purple and green.

Although some of the leaves are a lighter green, I wouldn't really call them yellow. Yellow leaves are very yellow--and drop off if barely touched. In my garden, that usually means too much water--like all of the month of May this year! Lots of yellow leaves as a result.

Some of the leaves from May have stayed a lighter green, but I notice that the new leaves emerging in June-July are all much darker green. And yes, many start out red-purple before they become dark green.

I wouldn't be worried yet--as long as you are getting on the BS.

Good luck.

Kate

OK, thanks. I swear it was greener the other day, but who knows. I'll just keep my eye on it.

Another question that I have - I made a gallon spray solution with the disease control stuff. I didn't use it all up when I sprayed. Is it ok to keep in the container and use next time?

The Bayer disease control doesn't keep well. It will separate and turn yellow. I pour the leftovers around my worse rose when I'm done spraying. Next time only make a half gallon (just cut the amounts in half). Your rose looks fine, and I'm jealous that you got some rain. We haven't had any in Madison. It keeps going north and south of us.

I think your leaves look healthy (aside from the blackspotted leaf on the ground). To me, the difference in color signifies the difference between the older, larger leaves at the bottom and the newer growth (paler green) leaves toward the top of the plant. In my experience, when the reddish new growth turns green, it is often a slighter different shade than the older leaves. Shelley

I just start to grow Roses, but for me it looks like typical chlorosis. When my Clematis and Lilies do this, I treat them with Ironite.