The Master Gardeners Mother’s Day Weekend Plant Sale is 9 a.m. to 2:30 p.m. May 10 and 11 (by appointment only) and 10 a.m. to 1 p.m. May 12 (no appointment needed) at the 78th Street Heritage Farm in Hazel Dell. Gardeners will find perennials and annuals, vegetables and herbs, houseplants and hanging baskets, mixed flower pots, used tools and garden supplies and 20-pound bags of Microna prilled lime. Cash, checks and cards are accepted. Visitors should bring their own carts and wagons for large orders. No pets are allowed. ADA parking is available. Get details, see a map of plant locations and make appointments at clark.mastergardenerfoundation.org/plant-sale/.