A minimum of 10 participants are required, with a maximum of 20 allowed. Preregistration is encouraged, or register at the event on a first-come, first-served basis. Email [email protected] to register. Pre-pay using MORP’s PayPal button at monte-zumaorchard.org. Cost is $35 for current MORP members; $45 for non-members. Visit www.prlibrary.org/events/event/tree-grafting-class for full details or call the library at 884-2222, ext. 510.