JAPANESE FLORAL DESIGN ... Thanh Kosen Nguyen, with more than 22 years' experience and certification in Wafu and Sogetsu styles, will teach a class on "Floral Design With Ikebana" from 1 to 4 p.m. on Tuesdays, Jan. 7 to March 11, at Greendell P2, 4120 Middlefield Road, Palo Alto. Nguyen will teach traditional and contemporary design, with students completing one or two designs in class each week. Students should bring sturdy garden scissors, a Pyrex bowl and a large pin frog to the first class. Cost is $75 plus a $100 materials fee payable to the instructor (or students can bring their own flowers). Information: 650-329-3752 or www.paadultschool.org
HEALTHY GARDEN SOIL ... Theresa Lyngso, president of Lyngso Garden Materials in Redwood City, will teach a class called "Soil FoodWeb" from 10:30 a.m. to 12:30 p.m. on Saturday, Jan. 11, at Common Ground, 559 College Ave., Palo Alto. She will deal with the beneficial organisms in the garden and how to encourage them to build healthy soil. Cost is $31. Information: 650-493-6072 or www.commongroundinpaloalto.org
TREE COLLECTION ... The city of Palo Alto's GreenWaste will be picking up Christmas trees on regular collection days for four weeks following Christmas Day. Trees must be cut into 4-foot lengths, taken off tree stands, with all decorations removed — including tinsel and nails. The trees should be placed next to the yard-trimmings cart. Sorry, no flocked trees. Residents living in apartment and condominium complexes may place their trees next to the garbage, recyclables and compostables containers.
RECYCLE CHRISTMAS LIGHTS ... Garbage or recyclable? That's the question. The answer (from Zero Waste): "Recyclable! Please bundle/tie the strand(s) and then put in with your other recyclables." Information: Susan Caudill, Zero Waste Palo Alto, 650-496-5910