N is for Nasami Farm, the propagating arm of the New England Wildflower Society which was founded in 1900 and is oldest plant conservation society in the U.S. I have shopped for many plants at Nasami Farm, last year purchasing several water tolerant if not water loving plants. I planted Buttonbush in the wettest part of our new garden because it  can often be growing in a river, not just on its bank. I also bought winterberries, viburnams,…