New England Aster questions??
I have my first NE Aster and am patiently waiting for it to bloom. I was just wondering if after it blooms do I prune it down, or leave it alone? Can I divide it after blooming? Also, can I collect seeds from this plant and can I plant them right away, or do I have to wait until Spring. I am in zone 6, western N.Y.
Thanks for your time.