Yes, you can definitely use fake plants and artificial trees outdoors. However, not all artificial plants and trees are suited for outdoor use. Some artificial plants and trees are manufactured using material that is inherently UV resistant which prevents them from losing color when subjected to extreme sunlight. Pacific Silkscapes carries these outdoor products. UV infused artificial plants are made with a special Poly-blend material that has the UV protectant built right into the material of the plants, flowers, or trees during the manufacturing process. This is by far the most durable and will last you the longest time without fading or becoming brittle from harsh UV rays. We expect 5 – 10 years* of use in some of the harshest climates. If you are not able to find your favorite plants made for the outdoors, then Pacific Silkscapes can apply UV resistant spray to make them fade resistant. Our UV treated plants are ones that have been sprayed with a UV coating prior to leaving our warehouse. They are treated to last generally 1.5 years or more* depending on the intensity of direct sunlight.