Ukiah Christmas Tree Collection December 22, 2019 Email Recycle your Christmas tree! Christmas trees can be cut into smaller pieces and placed in the Mixed Organic Waste cart for curbside collection. Make sure all decorations are removed and the tree fits inside the cart with the lid closed. Flocked or painted trees are not accepted. Free Christmas tree recycling is also available at the Ukiah Transfer Station during the two weeks following Christmas. Please remove all lights and decorations.