Seattle Public Utilities wants residents to know they can compost their holiday trees and wreaths for free now and through Jan. 31.

Holiday greens must have decorations removed and be cut to lengths of four feet or shorter and bundled with twine or sisal string. There will be an extra charge for flocked or plastic trees, according to SPU.

One tree may be placed next to each food and yard waste cart at apartments each collection day at not extra charge.

Trees and other holiday greens can be taken to city transfer stations through Jan. 31 and dumped at no charge. Trees must be no taller than eight feet, and their trunks no more than four inches in diameter. Stations will accept up to three trees per vehicle. SPU’s North Transfer Station is closest to Queen Anne and Magnolia, at 1350 N. 34th St.