USDA Plant Hardiness Zone Map
The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree °F zones.
click on the map for USDA Plant Hardiness in your area)
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Maryland Aquatic Nurseries, Inc.
3427 N. Furnace Road
Jarrettsville, MD 21084-1921
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