WickerMost modern wicker furniture is made of a very durable, synthetic material that resists sun damage much better than natural wicker does. However, it requires regular cleaning, as debris and dust can get stuck in between every little woven piece. Stick with a basic mild soap, rinse and dry to prevent long-term damage and mildew growth. The sun can seriously fade wicker, so it's a good idea to cover it if it's going to be outside for more than two to three weeks. Invest in waterproof furniture covers if you're worried about long-term care. The paint on wicker may start to peel after a while as well. Remove peels with fine sandpaper and touch up the paint.