The Hopkinton Garden Club’s Speaker Series presents “Your Beautiful Earth-Friendly Garden” on Tuesday, March 21, at 7:30 p.m. at the Hopkinton Center for the Arts (upstairs room) as well as on Zoom. In this introduction to sustainable gardening, Rebecca Warner, author of “The Sustainable-Enough Garden,” explains how home gardeners can put our environmental principles into practice with some easy adjustments to their approach. This event, supported in part by a grant from the Hopkinton Cultural Council, is free and open to the public. For more information, visit hopkintongardenclub.org or email register@hopkintongardenclub.org.