It is time to think about taking down and recycling Christmas trees.

Beginning Monday and running through Jan. 14, the Philadelphia Streets Department will be operating drop-off recycling centers for Christmas trees that are untied and free of decorations.

The six Streets Department Sanitation Convenience Centers will be open from 8 a.m. to 6 p.m. Monday through Saturday for tree drop-off. The centers are located at 3033 S. 63rd St. in Southwest Philadelphia; 2601 W. Glenwood Ave. in North Philadelphia; Domino Lane and Umbria Street in Upper Roxborough; 5100 Grays Ave. in Southwest Philadelphia; State Road and Ashburner Street in Holmesburg; and 3901 N. Delaware Ave. in Port Richmond.

Twenty-three locations, listed below, will accept drop-off trees on Jan. 7 and Jan 14.

For those who cannot participate in the recycling program, trees placed at the curb will be collected on regularly scheduled trash collection days.

There also are ways to use tree parts around the home.

Gardeners can use the small branches and needles as a winter mulch material for sensitive plants or garden paths. But do not burn trees, the Streets Department cautions. Burning sap can give off a foul odor and will coat the chimney with creosote which can cause a fire.

The 23 locations that will accept drop off trees on Jan. 7 and Jan. 14 from 9 a.m. to 3 p.m. are:

66th Street and Haverford Avenue

54th Street and Woodbine Avenue

43rd Street and Powelton Avenue

72nd Street and Buist Avenue

South Broad and Christian Streets

20th and Hartranft Streets

15th and Bigler Streets

Corinthian Avenue and Poplar Street

American and Thompson Streets

Graver Lane and Seminole Street

Cathedral Road and Ridge Avenue

Washington Lane and Ardleigh Street

Upsal Street and Lowber Avenue

Fisher and Ogontz Avenues

North Fifth Street and Chelten Avenue (water reservoir)

Castor Avenue and Foulkrod Street

Jardel Recreation Center, Cottman Avenue and Pennway Street

Mayfair Recreation Center, 2901 Princeton Ave.

Fox Chase Recreation Center, 7901 Ridgeway St.

8101 Bustleton Ave.

Palmer Playground, 2900 Comly Road

Russo Park, 7231 Torresdale Ave.

Wayne Avenue and Logan Street