Wednesday Evenings at Elm Bank will resume in October. The series has proven so popular that the Massachusetts Horticultural Society is putting the finishing touches on a four-topic fall session to be held October 6 through 27. Three of the four topics are: Preparing the Garden for Winter (cleaning up, when to water and mulch, when to prune, when to divide), Fall Lawn Care (to rake or not to rake? Renewing, re-doing and rejuvenating a lawn after a long, hot New England summer), and Everything You Need to Know About Bulbs (how to select, when and how to plant, and how to design with spring bulbs). Each session begins at 6:30 p.m. and concludes at 8 p.m. or when the last question has been answered. Sessions are $8 for members, $10 for non-members. Refreshments are served. Elm Bank, 900 Washington Street in Wellesley, is the home of the Massachusetts Horticultural Society in Wellesley. For more information, log on to www.masshort.org.