Allow the water to penetrate deeply into the soil, but do not water so heavily that the soil becomes soggy. Water again when the soil is dry to the touch and the tips of the plants wilt slightly at midday. One inch of water every 10 to 14 days is satisfactory for rapid establishment of the plants. During winter months, water the plants thoroughly when the weather is dry and the temperature above freezing. In cold climates with no permanent snow cover, plantings in direct sunlight may need protection during the winter months to prevent the thawing out of plant tissues.
Direct sunlight can cause permanent damage.
You can protect the plants by laying conifer branches or burlap over the beds. If the plants heave out of the soil in cold weather, push them back immediately. Do not wait until spring. Ground covers usually need pruning only to remove dead wood and keep the planting in bounds. You can mow some plants that are grown on level ground.