ATTRA Uses of Phenology, Floral Calendars for Wildflowers and Native Plants, General Resources on Phenology and PlantWatch Networks, Phenology for Kids and School Programs, What's in Bloom, Web Articles, and Related Information— Astrological Data, Sun, Moon, Climate
ANLA American Nursery & Landscape Association
The Dawes Arboretum dedicated to increasing the love and knowledge of trees and shrubs
Ohio State University Sites:
Web46 Garden
PlantFacts
Buckeye Yard & Garden Online
Weekly Gardening News for Central Ohio
Ohio Master Gardener Program
Chadwick Arboretum & Learning Garden
Horticulture and Crop Science