I have always said, and will continue to say forever, that wintertime is the best time to plant just about everything, but there is a question that always gets brought up, “Is the ground to wet?” That is an excellent question and a very important one to keep asking yourself. When the ground is too wet, it makes it very difficult to pack the soil in around the root ball during installation.
So is there a fix to the problem of the ground being to wet? I believe there is, but it involves one extra step to the installation process. If you plant a bush or tree in the really wet soil, you must pay close attention to how the soil packs back in around the roots. Also, as the ground dries out, it shrinks some because of the lack of water. The way to insure proper installation is, when the shrinkage occurs, take your shovel and foot back out to the plant and double check for any air holes around the root ball, or if the backfill dirt sank and you need to add a little more dirt to the top, then add more dirt.
Planting with moisture in the ground can dramatically increase survival of any plant because it lessens transplant shock. Just be sure to double check your work and you should have a beautiful garden in the spring.