By Liz Baessler Verbena plants come in a variety of shapes and sizes. While some have an upright growing pattern, there are several that stay very short and spread quickly by creeping along the ground. These varieties are great for groundcover, and will fill in an empty space very fast with delicate, low foliage and bright flowers. Keep reading to learn more about growing creeping verbena plants and using verbena as groundcover. How to Use Verbena for Groundcover While some verbena varieties grow as bushes that can reach 4 to 5 feet (1.2-1.5 m.) in height, there are plenty of other varieties that stay low to the ground. Some are trailing plants that spread along the ground. They put out creeping stems that root themselves easily in the ground and establish new plants. Others are just low growing, upright plants that top out at about 1 foot (30 cm.) high.