Garden Club of the Back Bay member Kaye Vosburgh will instruct you in Sogetsu Ikebana, an internationally recognized school of Japanese flower arranging, in a three session class to be held at Tower Hill Botanic Garden, 11 French Drive in Boylston, on Thursdays, April 28, May 19, and June 9, from 9:30 – noon.  Tower Hill members $35 per class, nonmembers $50 per class. Come to one or attend all three.  Register online at www.towerhillbg.org or call 508-869-6111 ext 124.