Should I Cut Back This Aster?
I never grew perennial asters before and I just read that you should cut them back for better growth.
I have aster x dumosus 'Prof Anton Kippenberg' starting it's second year. The plant label says it grows 12 to 15' high, but it's 24" high now. I sure hope it won't require staking. It has eight stems with what looks like flower shoots coming off the sides of the stems.
How much should I cut it back? And what good comes of cutting them back? I can see it would sacrifice flowers. What do you do with your asters?