Holiday Open House Tour Welkinweir estate house, decorated by area garden clubs and horticultural students; 10 a.m. to 2 p.m. Free, includes light refreshments. Welkinweir, 1368 Prizer Rd. off Route 100, Pottstown. Information: 610-469-4900;, click on "Contact us."

Monday, Dec. 15

Holiday Treasures From Past and Present Bo Peters demonstrates how to make "green" holiday centerpieces from fresh plant materials and recycled containers; raffle of arrangements follows. Program takes place at the Trevose Horticultural Society meeting; 7:30 p.m. Fee: $3. Wood River Village Auditorium, Hulmeville Road and Bensalem Boulevard, Bensalem. Information: 856-866-9163.

Wednesday, Dec. 17

Showtime: A Pictorial Presentation of Members' Award-Winning Roses Program at the West Jersey Rose Society's meeting; 7:30 p.m. Free. Medford Leas, Community Building, Holly Room, 1 Medford Leas Way, Medford. Information: 856-234-6583.

Greens sales

Wreaths and Centerpieces 11 a.m. to 2 p.m. tomorrow. Free. Awbury Arboretum Association, Francis Cope House, 1 Awbury Rd. (entrance off Chew Avenue between Washington Lane and Haines Street); 215-849-2855;

Wreaths, Door Swags Also centerpieces, hand-tied bows, pine roping, and cut greens (benefits Wissahickon Environmental Center); 10 a.m. to 4 p.m. tomorrow and Sunday. Free. Valley Green Inn, Forbidden Drive, near Valley Green Road; 215-685-9285.