Latest Research
Latest Research


Shade Tolerant Trees, Shrubs, and Groundcovers
Jim Sellmer, Ph.D., Scott Guiser
Most plants grow best in full sunlight and all plants need some light to survive. More


Evergreen Shrubs and Trees for Pennsylvania
J. Robert Nuss
This article explains hardiness and site requirements, landscape use, and characteristics of selected evergreen plants. More


$15.00
Identify and manage the diseases afflicting your trees and shrubs. More