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Blog / Landscaping / Landscape Design / Groundcovers Part I: Beauty and Function for the Garden

Groundcovers Part I: Beauty and Function for the Garden

November 9, 2018

“Bare soil never remains bare for long. It will always sprout weeds,
so why not cover the ground with plants of your own choice?”
Rosemary Verey, Making of a Garden

Variety of groundcovers, interplanted with shrubs and trees, manage erosion on steep slope.
Groundcovers on steep slope

Most gardens offer us sensory treats: a profusion of flowering perennials and annuals; the rustle and movement of wind in the trees; splashing water features; whimsical or formal statuary; pathways and benches—all vying for attention. Some are divas in the garden, insisting on attention.  Groundcovers are garden understudies, bringing unity and a sense of order to the landscape in an understated way. They can provide a carpet of color linking ornamental plants, or create different moods as plant choices shift throughout the garden.

What are groundcovers?
Groundcovers are perennial plants intended to cover an area for many years. Groundcovers can be evergreen or deciduous, blooming or not, woody or herbaceous. Generally, groundcovers are short plants, growing 18 inches or less. Turf grass is a common groundcover, but lawns are costly, requiring fertilizer, lime, water, and time-consuming maintenance. They are unsuitable for steep slopes and shady areas. There are many attractive alternatives!

Consider how much more interesting fragrant groundcovers such as Sarcococca spp. (sweet box) and Gallium odoratum (sweet woodruff) would be than turf grass! Or how much more practical edible groundcovers such as culinary thyme, oregano, and strawberries would be than inedible lawn!

Groundcover functions
Groundcovers provide many useful services in the garden—similar to mulch, but without the need for frequent replacement! Among these are:

  • Controlling weeds
  • Filtering rainwater—reducing runoff and preventing erosion
  • Reducing heat, glare, noise, and dust

What do groundcovers need?
It’s always smart to assess your growing conditions before planting—remember the gardener’s mantra: “Right plant. Right place.”

Some groundcovers love full sun—Phlox subulata (creeping phlox) and low growing juniper (Juniperus spp.), among others. Other groundcovers prefer shade—Chrysogonum virginianum (green and gold) and Tiarella (foam flower). Moss will thrive in the dense shade that defeats other plants.

How to use groundcovers
Groundcovers have so many excellent properties that it’s amazing they are often an afterthought in garden design. They are a useful, lovely answer to the question of what to plant on a steep slope.

Visualize a garden with an underlaying grand sweep of a green groundcover. Then picture the same garden with bare earth or mulch. The garden with groundcover will seem fuller and more complete as compared with the starkness of the garden without. Groundcovers are indeed a quiet delight in the garden.

Article written by Sally Wheeler, Extension Master GardenerSM Volunteer.

Stay tuned
Over the next several weeks, our blogs will highlight a variety of groundcovers—those that attract pollinators, very low-growers, sun-lovers, and those that thrive in shade. There’s a groundcover to fit any landscape.

More information
From the Ground Up: Groundcovers to Know and Use
University of Illinois Extension

Selecting Landscape Plants: Groundcovers
by Alex X. Niemiera, Associate Professor Horticulture, Virginia Tech
Virginia Cooperative Extension
NOTE:  BEWARE of INVASIVES and very aggressive plants listed in this article, such as English ivy, nandina, and periwinkle.

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Categories Landscape Design Tags erosion control, groundcovers

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