Grow plants that you love—and that the deer don't. Direct Gardening offers a wide selection of deer-resistant perennials, or plants that deer usually won't eat because they taste bad, are toxic, or because deer don't like their smell or texture. Choose from shade perennials, such as ferns and astilbe, sun perennials, such as coneflowers and hummingbird mint, and ground covers, such as sedum and ajuga. When buying deer-resistant perennials for sale online, make sure the plants are suitable for your hardiness zone and the growing conditions in your garden. Other factors to consider are their mature height and spread, bloom time, flower color and maintenance needs.