TREE WALK ... Arborist Heather Booty will lead a free tree walk through Old Palo Alto on Saturday, Feb. 13, from 10 a.m. to noon. Meet at the Churchill Avenue entrance to Gamble Garden (between Waverley and Cowper streets). Visitors may continue their tree tour at Gamble Garden. Information: Call Canopy at 650-964-6110 or visit www.canopy.org.
CAMELLIA SHOW ... The 49th annual San Francisco Peninsula Camellia Society show and sale will be held Saturday, Feb. 13, 10:30 a.m. to 4 p.m., and Sunday, Feb. 14, 10:30 a.m. to 3 p.m. at the Community Activities Building, 1400 Roosevelt Ave., Redwood City. Admission is free. More than 1,000 blossoms will be displayed, including several "Valentine Day" (Camellia reticulata) camellias — with large formal double, salmon-pink blooms. Plant sales begin at 9 a.m. Saturday and 10:30 a.m. Sunday. Information: Call Caroline Beverstock at 650-854-6709.
REAL-WORLD PRUNING ... Arborist Dave Muffly will offer an opportunity to learn how to revitalize old fruit trees that suffer from poor past pruning on Saturday, Feb. 13, from 1 to 4 p.m. (rain date Feb. 20). Dozens of fruit trees, including apples, citrus and peaches, are awaiting TLC at the hands-on workshop site; directions and details are available upon registration. Cost is $25. Information: Contact firstname.lastname@example.org or visit www.canopy.org.
GREEN THE BATHROOM ... Susan and Bob Davis, certified green-building specialists and owners of Spectrum Fine Homes in Mountain View, will offer "Eco-nomical Tips to Green Up Your Bathroom" on Tuesday, Feb. 16, from 5 to 7 p.m. at Kepler's Bookstore, 1010 El Camino Real, Menlo Park. The focus is on making the bathroom water- and energy-efficient. Information: Call 650-324-4321 or 650-960-2449.
ESTABLISHING A GARDEN ... Bob and Judy Mathey will make a presentation on the Harmony Woods garden, and how a garden is established, at the next meeting of the De Anza Chapter of the American Rhododendron Society on Wednesday, Feb. 17, at 7:30 p.m. The group meets in Room 12 of the Hillview Community Center, 97 Hillview Ave., Los Altos. The Harmony Woods garden in Mendocino, Calif., features more than 300 rhododendrons and conifers, as well as a waterfall and stone-bridge area planted with mature rhododendrons, maples and ferns. Information: www.deanza-ars.com.
QUILT SHOW AND MORE ... The San Mateo Quilt, Craft and Sewing Festival will be held Feb. 18-20 from 10 a.m. to 5 p.m. at the San Mateo Expo Center, 1346 Saratoga Drive, San Mateo. Tickets are $10, with a $1 discount coupon available at the website, www.rustybarn.com/coupon.html.