A surefire way to save some money is to grow annuals, biennials, and perennials from seed. Not only is the plant selection larger, but many varieties are simple to sow and some even self-seed, meaning they return year after year. Examples of top re-seeders: hollyhock, marigold, calendula, and zinnia. Growing certain perennial flowers from seed does require patience for the plants to get sizable and flower, but you can grow many annual flowers quickly and for a fraction of a container price. In addition, growing vegetables from seed is not only economical but also healthy and tasty.