Last week I visited the Lyman Plant House at Smith College in preparation for a column and post about the Annual Chrysanthemum Show which begins Friday, November 5 with a talk by Smith alum and author Paula Dietz about the gardens she has visited and written about in her book, On Gardens. The Smith Botanical Garden and the Lyman Plant House are treasures for the whole community to use. The Lyman Plant House is open every day (except Thanksgiving and…