Second, prepare the planting site. Take the time to improve your soil and notice how much light and water your site receives. Then, think about the qualities that you require from a ground cover. Ground covers range in height from half an inch or so to 12 inches tall, and their widths can vary enormously. In fact, some groundcover plants can be quite monstrous, spreading so aggressively that they become invasive.
Scotch moss stay evergreen in winter and feature small white flowers in late spring.
In our sunny climate, Sagina subulata requires some shade and water to thrive. In contrast, thyme is great for those hot, sunny areas and boasts marvelous fragrance. Thyme flowers are pink or lavender in summer. Blue varieties often keep better color if they are planted in shadier sites. Many ground covers, like most perennial plants, only flower for a month or two in spring or summer.