Boston Natural Areas Network will host Perennial Garden Basics: Spring Perennial Garden Care on Saturday, March 22, from 10 – 12 at the James J. Chittick School, 154 Ruskindale Road, Mattapan.  In this workshop presented by Adam Monroy, learn how to prepare, plant and fertilize a perennial garden bed for multi-season interest.  Registration required by calling 617-542-7696 or by emailing info@bostonnatural.org. Photo from www.perennials-made-easy.com.