When you're planting shrubs for foundation in your garden, it's important to remember that they should be very hardy. They'll get less water (because of eaves) and will catch the heat reflected from your house. Also, since foundation plantings are so close to your home, they are an integral part of your its appearance. You'll want your shrubs to be long-lived and the appropriate height and width.
You'll want to mix and match your foundation plantings for visual interest, so look for both tall and short. Tall shrubs are best used for corners or for large expanses of a wall that doesn't have any windows or other distinguishing features. Don't plant shrubs too close together (you don't want a solid wall of green around your home), and don't plant anything that will grow taller than the eave (gutter line). Also, choose shrubs that have lower water requirements. You don't want to water too much near your home's foundation. The following shrubs are examples of best shrubs for foundation planting. Be sure to know which USDA Zone you live in and plant accordingly. Check with your lawn and garden center if you're unsure.
There are several species of Juniper shrubs for foundation planting. They grow to varying heights, so choose carefully. Juniper Bar Harbor grows low to the ground and spreads out 4 to 6 feet and grows only 4 to 6 inches tall. Juniper Blue Point is a taller shrub that's perfect as a corner planting, or when used between windows. It grows 8 to 9 feet tall and 4 to 5 feet wide. Juniper Sea Green is a bushy shrub that grows 5 to 6 feet high and 4 to 5 feet wide. It's low maintenance and perfect as an accent or hedge.
Try Nandina Compacta if you want a flowering shrub. It offers pretty white flowers when it blooms, followed by red berries and is perfect for screening utility boxes or air conditioners. It grows 3 to 4 feet high and 3 feet wide. Nandina Harbour Dwarf is similar to Compacta, but only grows 18 inches high and 18 inches wide. Spirea is a wonderful foundation planting since it blooms from the summer to fall. It's a great compliment to the evergreen Juniper and early blooming Nandina. Spirea Gold Mound offers yellow gold blooms and grows 2 to 3 feet high and 3 feet wide. Spirea Little Princess is similar to Gold Mound in size, but offers pink blooms.