This time of the year many of my perennials need to be pruned. Some need pruning to encourage flowering, others because they have grown too tall, and some so the stems will not be so long that they will fall over if not pruned. Below are some examples from my garden:
Other perennials I prune now include garden mums, perennial salvias, feverfew, and black-eyed susans after they finish blooming. Many folks may say pruning perennials now is a mistake, but for me, I want a great fall show of flowers in my garden. This, along with a light fertilization, and keeping them watered gives me a great presentation.