Alberta & BC Rockies Plant Databases
- Canadian hardiness zone map (Agriculture Canada)
- Canadian Last & First Frost dates (Victory Seed Company)
- Plants (US Dept. of Agriculture)
- Houseplant Database (Interiorscape)
- Garden Plants database (HortiPlex)
- Poisonous plants
- Ontario Wildflowers
- Medicinal Plants of Native America Database (University of Michigan)
- Medicinal herbs (University of Michigan)
- Ethonobotancial database of the USDA.
- Phytochemical database of the USDA.