As the seed catalogs arrive, the thoughts of starting plants for outdoor or greenhouse growing get an invigorating mind set established in any gardener looking out the window at leafless trees and possibly snow-covered ground. The anticipation of renewed plant growth is irresistible and compelling. Seed companies know when to time the arrival of their catalogs to get the highest level attention from gardeners. The sheer number of plant and seed choices, however, is often overwhelming. We shall not tackle the entire complex issue here, but we will look at some basic differences in the way some of the different cultivars were developed and what some of their features are. This way, you will be able to more readily determine what best matches your desires and expectations of the resulting plants.