The best home gardens include a variety of plants. Our perennial plant collections offer gardeners an economical way to grow a variety of perennials. Because perennial plants come back year after year, they're popular in the garden. Just plant them once and enjoy them for years. Annual plants, on the other hand, complete their growth cycle in one season and die. Direct Gardening offers a variety of perennial plant collections including plants that grow well in the shade as well as sun-loving perennials. When buying plant collections online, make sure the plants are suitable for your grow zone and growing conditions. Also take into account their mature height and spread.