Seasonal annuals add a burst of color to a slow-starting spring or drab end-of fall. They can also start attracting in pollinators and other beneficial insects, invertebrates and birds. Vegetable starts are great ways to get a jump on the summer growing period, especially if there are late frosts. Try our proven trick of planting tomato, basil, hot peppers and other delicate starts in wall-o-waters early in May!