Beekeepers can learn how to keep bees healthy and raise their own queens with Charlotte Trim at Lindentree Farm (10 Old Concord Rd.) on Saturday, April 22 from 2-4:30 p.m. There will be a hands-on demonstration in the field, weather permitting (bring your suits). The second session is May 20 from 3-5:30 p.m. Cost for both is $120. Pre-registration for $30 is required. Email firstname.lastname@example.org or email@example.com.