what is verbena
Verbena. Verbena is a spreading plant ideal for cascading over retaining walls, pots, baskets, and window boxes. As log as the soil is extremely well drained, verbena will reward gardeners with countless clusters of small blooms all season.Superbena Burgundy Verbena) is a vigorous selection that bears rich burgundy flowers from spring to fall. It grows 12 inches tall and can spread 4 feet across as a groundcover. It will trail over the sides of a container or hanging basket.