Foxy Lady: Don't forget they also need water. Especially if it's freezing out. I have a big plactic pot bottom that is pretty easy to unmold the giant ice cube and replace with fresh water. I'de love a birdbath heater but don't have.
You can mix veggies and flowers together. Certain flowers even attract beneficial insects. Of course if you spray a lot of chemicals you will just kill them. You might want to try organic gardening and avoid the chemicals with that lovely baby who will soon be following you around out in your garden :)