Thereâ€™s nothing more satisfying to a gardener than growing plants from seeds. From annuals and perennials to trees and shrubs, success can be achieved if you understand what triggers germination. On Saturday, April 6, from 9 – 1 at the Dana Greenhouse Classroom at the Arnold Arboretum, expert propagator Jack Alexander will share techniques for starting various types of plantsâ€” annuals (including vegetables), trees, and shrubsâ€” from seeds. This workshop is for beginners and those who have been frustrated in past attempts to transform seed to seedling. Students will leave class with a selection of seeds raring to grow. Aftercare will be necessary. $50 for Arboretum members, $65 for non members. Register on line at www.arboretum.harvard.edu.Â Photo from www.growingagreenerworld.com.