Juniper Blue Rug 3G This silver-blue evergreen ground cover will only grow 6" tall but can spread to 6 feet wide. Ideal choice for a sunny bank too steep to safely cut. Also helps control erosion issues on hillsides. Landscape goal with Blue Rug is to form a "carpet" in a couple of growing seasons, eliminating the need to add mulch or pull weeds as the plants grow together. Space 4' apart for fast coverage, farther if patient. Offset each row to establish a pattern and slow erosion. Thrives in hot sun and poor soils once established.