The Master Gardener Mother’s Day Plant Sale is 9 a.m.-2:30 p.m. May 9-10 and 10 a.m.-1 p.m. May 11 at the 78th Street Heritage Farm, 1919 N.E. 78th St., Vancouver. The Master Gardener Foundation of Clark County will offer perennials, houseplants and gardening supplies. Proceeds from the sale benefit the foundation. The sale is open May 9-10 by appointment only at clark.mastergardenerfoundation.org/plant-sale/. The sale is open to the general public on May 11.