Cabbages are one of the easiest vegetables to grow year-round in your garden. But when it's time to harvest them, it's not unusual to find their leaves full of holes and the heads crawling with worms.

The cabbage plant (Brassica oleracea) is a cool-season vegetable that is relatively easy plant to grow if you add companion plants alongside your crop. Cabbage is a popular food for humans—and among ...