Without intervention, your garden's perennials have a set number of buds that bloom every year. But you can trick some into reblooming—providing a second wave of color—by deadheading, or pruning off, spent flowers. According to horticulturist Robert E. Lyons, the garden favorites that are your best bets for bonus buds include black-eyed Susan, blanket flower, coreopsis (C. grandiflora), echinacea (E. purpurea), Shasta daisy, spiderwort (Tradescantia virginiana), and swamp hibiscus. Removing blooms redirects the plant's energy away from developing seeds at the flower head and toward new bud production. Simply remove fading flowers—with your fingers, snips, or bypass pruners, depending on the stem's toughness—down to the next closest bud or leaf.