Direct Gardening's 1-Cent Sale offer is a great way to grow more plants for less—or to share plants with your gardening friends. When you buy one plant for the regular price, you get the second of the same for just a penny more. Direct Gardening offers a wide selection of plants in its One Cent Sale offer. Choose from perennials, shrubs, flower bulbs, trees and ground covers. You'll find fragrant plants, deer-resistant plants, and plants for shade, too. When selecting plants to buy online, factors to consider are your hardiness zone, sunlight requirements (full sun, partial shade or full shade), mature height and width, bloom time and flower color.