this page is updated frequently
ASPCA - toxic and non-toxic plants for pets
Missouri Botanical Garden database - nomenclatural, bibliographic, and specimen data accumulated in MBG’s electronic databases during the past 30 years
The Dirty Dozen - Environmental Working Group top 12 list for pesticide residue
EPA - REDUCE REUSE RECYCLE
EPA - COMPOSTING
NATIONAL ORGANICS PROGRAM
NATURAL RESOURCE CONSERVATION SERVICE
NOAA (weather)
Title 7: Part 205 The National Organics Program Code of Federal Regulation
PLANT FINDER - search native plants by habitat, form, use, and other criteria
PRAIRIE WILDFLOWERS of ILLINOIS - wildflowers grouped by plant communities
UCONN PLANT DATABASE - woody landscape plants
US GEOLOGICAL SURVEY
USDA Blog: Organics 101
USDA Plants
WEB SOIL SURVEY