The Random House Book of Perennials Vol. The Random House Book of Perennials Vol. Planting and Pruning Techniques by Tracy DiSabato-Aust Links Behnke's Nurseries has provided a list of interesting and relevant sites that concern gardening and horticulture. Adkins Arboretum Adkins Arboretum, located in Hillsboro, Maryland, is a 400 acre part of Tuckahoe State Park. The Arboretum hosts research and educational programs which focus on forest and meadow ecology.
Admission is free.
The American Hemerocallis Society is a member organization that offers a Daylily Journal, an email daylily open forum, and opportunity to attend lectures and meetings, regional newsletters, a slide library, and invitations to exhibit at AHS-accredited local flower shows. The AHS is a non-profit organization that aims to further the development and public interest of Hostas through scientific and educational programs. The American Iris Society is a noneprofit institution incorporated in 1927 in the County of Philadelpphia, Pennsylvania. The Society exists to promote the culture and improvement of the Iris. Beltsville Agricultural Research Center Beltsville Agricultural Research Center offers programs through their Nutrition Center, Livestock and Poultry Sciences Institute, and their Plant Sciences Institute.