These responses be classified as active responses and legacy. The groundcover filters out a large amount seeds, a smaller portion of seeds. This filtration provides ample amount of space for future growth between the seeds. An experiment conducted in the southern Appalachian region with the rhododendron maximum canopy. Two common variations of groundcover are transient species and residency. Residency species reach typically a maximum of 1.5 meters in height. These height differences make ideal environments as the reed warbler for a variety of animals.
Five general types of plants are used commonly in gardening as groundcovers.