Garden calendar

Master Gardener: 10 a.m. Aug. 23, Covington Library, 27100 164th Ave. SE. Master Gardeners from Washington State University Extension will provide advice on gardening and plant problems.

Master Gardener: 10 a.m. Aug. 23, Covington Library, 27100 164th Ave. SE. Master Gardeners from Washington State University Extension will provide advice on gardening and plant problems.

Lake Wilderness Arboretum Fall Plant Sale: 10 a.m.-4 p.m. Sept. 13. Discounted and clearance plants available during event. 22520 S.E. 248th St., Maple Valley.

WaterWise Demonstration Garden: Self-guided tours showcase plants and gardening methods that conserve water. Plant list available at garden or from Web site. Guided tours available for groups of 12 or more with advance registration. Hours: Dawn-dusk daily. Covington Water District, 18631 S.E. 300th Place, Covington. 253-631-0565, ext. 170, or www.covingtonwater.com.

Lake Wilderness Arboretum: Events: 10 a.m. the third Saturday of the month, docent tours; 9 a.m.-1 p.m. Saturdays, summer plant sales. Forty-acre arboretum features trails for walking, jogging and bicycling. 22520 S.E. 248th St., Maple Valley. 425-413-2572 or www.lakewildernessarboretum.org.

Green Thumb Garden Club: 7 p.m. the first Friday of the month. St. John the Baptist Church, 25810 156th Ave. S.E., Covington. 253-630-7674.