4-H Enrollment: NOW OPEN! January 11, 2022 by Rebecca Supinger at 3:33pm 4-H enrollment for 2022 is now open! Enroll today at v2.4honline.com! All volunteers and youth must enroll by April 1. If you are a new family and would like to learn how to join Greene County 4-H, contact the Extension Office at 937-372-9971.