We recently purchasesd about a dozen potted Knockout roses. We planted them in a fresh dirt mound and after a couple hard rains all the blooms have fallen off. Are they in shock and do we need to do anything to get them to rebloom? We have received quite a bit of moisture and had several days of high winds just wondering if the plants are ok?
There could be something going on with the dirt in that mound that has had a negative effect upon the rosebushes. Do you know where the dirt came from? If it was from a foundation dig, there could be some pH problems with it. It would be good to take some in to a soils lab near you and have it tested just to be sure. It could also be too much rain and wind on the rosebushes. They could be showing signs of being in shock as well as stressed out. Transplant shock, then an over abundance of water stress added to it all wind whipping stress. If you know the dirt is okay, just wait a few days. Let things dry out a bit, then when you do water them add some root stimulator and a product called Super Thrive to the same water. This mix will go a long way to helping the rosebushes recover from the multi shock and stress battle they have been going through.