Perennial plants are the backbone of every successful landscape and garden border. They are available in a wide range of sizes, colors and blooming seasons. Perennials grow and bloom over the spring and summer and then die back every autumn and winter, then return in the spring, bigger and better with every passing season. Typically, they grow from their root stock rather than seeding themselves as an annual plant does. These are known as herbaceous perennials. However, depending on the rigors of local climate, a plant that is a perennial in its native habitat, or in a milder garden, may be treated by a gardener as an annual and planted out every year, from seed, from cuttings or from divisions.
June has been designated National Perennial Plant Month. There are wide selections of perennials that may be planted in June. It is a good time for the gardener to find more mature specimens of favorite summer bloomers at the garden center. It is also a good time to plan and plant a sequential summer perennial display of old-favorites and new cultivars. There are many spectacular flowering performers for the sultry summer season.