Candytuft (Iberis Sempervirens) is incredibly floriferous. Rewarding spring flowering plant with a creeping habit. It flowers in great abundance covering the ground with a carpet of white flower clusters. Stays green during winter. The best effect is obtained by planting Candytuft as an edging or in the rockery.
Most gardeners are familiar with classic perennials such as daylilies, peonies, hostas, and iris, but there's a whole host of lesser-known, underused perennials that can add color and interest to your garden. You may have to search for them at your garden center or an online source, but they're all worth the effort. Here are 15 of our favorite underused perennials.