The Veterans Gardening Guide is pleased to provide the following links to companies and organizations that provide education and information on our environment. Many of these organizations may depend on private funding, and I encourage you to help when you can.
Natural Resources Canada – Provides plant hardiness zone maps and summarizes the climate requirements of thousands of plants from across North America
United States Department of Agriculture – Provides information on plant hardiness zones that can be used by gardeners and growers in each state to determine which plants are most likely to thrive within a location