Prune red twig dogwood.
Mine is very thin; can I cut it down in fall to come back better in spring?
Prune redtwig dogwood when it is dormant this winter. It responds well to hard pruning. Since it grows fast, you may want to thin spindly branches each year (anything less than pencil diameter) and prune out the oldest wood annually after spring bloom is over. Young wood blooms more heavily and has that lovely red color.