Hardiness Zones - Flower Bulbs

The most recently updated (2012) USDA Plant Hardiness Zone map is the industry standard by which gardeners and landscapers alike can determine which plants are most likely to thrive in their particular location. This map will help determine which climatic zone you are in, but can serve only as a guide since conditions for growing flower bulbs can vary greatly from area to area.

US Hardiness zones map