Many plants and trees do best when planted in the autumn season, and autumn is also the time to prepare the soil for next year’s garden. The Savvy Gardener program is offering a free class on Saturday, September 21 at Magnuson Park on “Beautiful Solutions for Gardening on Slopes.” Learn how you can replace hard-to-mow slopes with beautiful, easy-care plantings. See for yourself how a heavily compacted slope in Magnuson Park has been transformed and how gardens can improve as a result of building healthy soil. The Savvy Gardener class is free but registration is required; be sure to use the code 105399 when you sign up.