Spring gardening season is here, and so is Compost Days from Cedar Grove. From now through April 15, you can buy two bags, get the third bag free! Here is a list of participating retailers, with the most convenient location right in Wedgwood at the Seattle Audubon Society Nature Shop, 8050 35th Ave NE. Go to the Compost Days page to get your compost coupon or look for it in your March Seattle Public Utilities billing statement. Compost Days coupons are good through April 15, 2014.