Redwood bark groundcover is a type of groundcover that is made from redwood trees. Groundcover is often used in gardening in order to provide a protective layer against weed growth. It also helps the garden soil stay moist and maintain the proper temperature for optimum plant growth.

Redwood bark groundcover has a high level of acidity. Therefore, it is even better at keeping weeds away than some other natural forms of groundcover. For the same reason, redwood bark groundcover is particularly beneficial in gardens with acid loving plants such as rhododendrons and blueberries.

Unlike softwood groundcover, such as that made from pine trees, redwood bark groundcover clings together. Consequently, it will not wash away during a heavy rainstorm. It is also ideal for use on slopes and hillsides, because it clings together in such a way that it is almost like a mat and will not wash away.

The fact that redwood bark groundcover clings together to form a mat also makes it exceptional at retaining water. In this way, it helps prevent plants from drying out. This is particularly beneficial during the summer months, when the days can be long and dry. In addition, redwood bark groundcover is helpful to the gardener who cannot routinely get outside to water his or her garden.

When used in a garden, redwood bark groundcover should ideally be spread so that it is four to six inches (about 10.16 to 15.24 centimeters) deep. The deeper, the better, as it provides improved control of weed growth and retention of water. Unlike many forms of groundcover, redwood bark groundcover will not hurt nearby plants. Therefore, it is not necessary to leave a space around the stem of the plant when spreading it. Redwood bark groundcover should not, however, be used to amend the soil, because its oil content is too high.

Redwood bark groundcover is similar to cedar groundcover in many ways. The colors are nearly the same, and both have the same properties. Redwood bark groundcover, however, will last about twice as long as cedar groundcover. Therefore, it is not necessary to replace redwood bark groundcover as often as many other forms of natural groundcover.