A landscape without perennial gardens is a one-season event. After the spring display of flowering shrubs is over, perennials take center stage. Sure, there are some late-flowering shrubs in summer like Spirea, Hydrangea and shrub roses but for the most part, the spectacular summer color belongs to perennial flowers. Especially here on the New England territory. The importance of a good perennial flower design cannot be overstated.
The best piece of advice I can give when designing your new garden is to start small. The best way to display your perennials is in plant clumps of at least three to five plants of your favorite, most coveted species. Growing perennials together is the most practical option it allows for easy planting, soil preparation, and care.
Living architecture. Perennial garden design is not as simple as picking out some plants at your local garden center. A good perennial design must take into account color combinations, blooming times, and plant heights. There are some perennials that only bloom for several weeks; others will bloom all summer. Some perennials stay where they are – others, like Bee Balm and Black-Eyed Susans, will re-seed until they take over the flower bed. Most perennials will thrive in full sun; but only a few will survive in shade.
To create a manageable sweep, plan one that is between five and eight feet deep and twenty feet long. To define the boundaries of your garden, boxwoods or other evergreens anchor the ends and provide great edge definition. Taller-growing plants should be positioned in the back, or even at the center of an island bed, with the lower-growing plants centered in front or around the larger ones.
Mix it up. Even with a well thought out perennial plan, any garden needs balance. A conifer backdrop, a red foliage ornamental tree or sedge grasses can add a lot of depth to a perennial garden. There may also be – despite our best intentions – gaps in the blooming cycle. In this case, it’s not a bad idea to incorporate a few annual flowers in key spots. Whether border annuals like Marigolds and Snapdragons, or tall background flowers like cleome, annual flowers can provide constant color until the first frost.
Color blending your garden works well if you follow the color wheel and place complementary colors next to each other. For example, a splash of yellow is a stunning addition to a garden filled with reds and lavenders. Lighter flowers really make nearby dark flowers pop. When you choose perennials, look for full and colorful foliage with new growth appearing.
A common misunderstanding about perennials is that they are maintenance free. While it’s true, you plant them one time and they come back every year – they do require a certain degree of maintenance. As they grow, perennials will crowd each other out. Every few years, they will need to be divided and moved out of the flower bed. One of the great benefits of having perennial gardens in your yard is that you will have a never-ending supply of plants – and thus, a never ending supply of plant-loving friends to share them with!