• Weeping willow trees provide shade and privacyDesign Pics/Valueline/Getty Images
  
  Trees are the most permanent plants in the landscape, many living for more than 100 years. Trees are often chosen for either privacy or shade and sometimes both. Deciduous trees provide shade, beauty and protection from harsh winter, according to the Colorado State University Extension website, and they also help offset poor air quality. Trees chosen to create privacy screens are fast-growing and develop density in the lower trunk and branches. There are many varieties of trees that provide shade or privacy.
  
  

Thuja Plicata Green Giant

• Thuja plicata Green Giant is a fast-growing conifer that can be grouped together to form a screen or hedge for privacy. It grows 30 to 50 feet in height and 10 to 15 feet width in a broadly pyramidal shape. It has rich evergreen foliage on dark red wood. Its half-inch pine cones provide late-winter food for birds and small animals. The low branches provide privacy and dense shade year-round.
  
  

Niobe Weeping Willow

• The Niobe weeping willow tree grows 50 feet in both height and width, making it a privacy and shade tree. It has golden bark and yellow autumn leaves. It is fast-growing and well-suited to moist soil conditions. The Niobe weeping willow adapts well to wet soil.
  
  

Chinese Privet

• The Chinese privet is often planted in rows to create a landscape fence for privacy. This low-maintenance tree provides privacy with its bushy hedgelike characteristics. Its leaves are variegated colors of silver, light green and yellow. It grows 6 to 8 feet in both height and width, adapts to a variety of soil conditions and is drought-tolerant.
  
  

Red Maple

• The Autumn Blaze red maple cultivar was named 2004 Urban Tree of the Year for its beauty and excellent adaptability to city conditions. It does not drop seed pods in spring. Red maples provide the summer shade of abundant leaf growth and a bright red blaze of color in autumn. It is fast-growing to 50 feet in maturity with a 30- to 40-foot width.
  
  

Willow Hybrid

• To create a dense privacy screen rapidly, willow hybrids are a good choice. They grow up to 6 feet per year, reaching 45 feet high when planted in rows. When planted five feet apart, they quickly fill in the area between to provide complete privacy. Hybrid willows thrive in all soil conditions and full or partial shade.