Ground cover plants grow low over the ground covering the soil surface so effectively that they suppress weeds and reduce the amount of garden maintenance required.
Ground cover plants may be an important feature of the wildlife garden, as they keep borders tidy while at the same time offering shelter for tiny mammals, allowing them to travel around the garden without being disturbed.
An ideal ground cover plant will therefore have:
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A number of different types of plants can be used, but shrubs have the advantage of being permanent and, in some cases, evergreen. Herbaceous perennials are sometimes chosen when they retain their leaves over winter or begin growing early in the year before weeds have a chance to germinate. Plants that spread vegetatively by stolons or rhizomes are particularly useful. From a design point of view, the form the plant takes over the ground, which may range from a small, neat mound to a creeping, invasive, ground-hugging form, will also be an important factor.
Ground cover plants are typically used to:
Careful selection of ground cover plants is essential. They must be suited both to the location and their purpose. As with any other plant careful attention to soil preparation before planting will greatly increase the success of ground cover. The planting distance will depend on the individual plants, but generally they should be planted more closely than the normally recommended distance so that they knit together to provide the required cover quickly.
Since ground cover is generally intended to reduce garden maintenance it is important to select species that will require little attention. However, they will require the usual level of nurturing as they establish themselves – including watering and weeding. Periodic clipping will also be needed for some plants to help keep them neat and tidy. Most species will also benefit from occasional feeding.