Trees and Shrubs
The Penn State University Master Gardener program was established to assist booth Cooperative Extension in reaching the consumer horticulture audience. The program provides interested individuals with extensive training in many phases of gardening. In return, participants dedicate volunteer time to teaching horticultural information based on university research and recommendations.
Common diseases of plants frequently grown in greenhouses, interiorscapes, and in outdoor landscapes and nurseries in the northeastern U.S.
What to consider when selecting shrubs, aesthetic qualities of shrubs, and shrubs for specific conditions.
