Do we need to clean up knockout rose petals that fall on ground?
I have many knockout roses. Do we need to clean up the knockout rose petals that fall on the ground? Will it cause disease if not cleaned up?
Leaving the rose petals on the ground will not be of harm. Some folks rake them up lightly just to keep things looking tidy, but leaving some to turn back into the earth can actually help build the soils. I usually lightly rake them up for the appearance and so that there are no large clumps that would take a long while to decay away into the soils.