2 Planting Zone in St. George Utah with Map

St. George, Utah spans two USDA Hardiness Zones: 8a and 9a, according to the 2023 USDA update. Most areas, including Downtown St. George, Bloomington, and Washington Fields, belong to Zone 8b with 15°F to 20°F (-9.4°C to -6.7°C) average annual minimum temperatures.

Limited sections of the Green Valley region falls under Zone 9a, with lows of 20°F to 25°F (-6.7°C to -3.9°C). Please note that, outlying regions like Brookside, Dammeron Valley, Diamond Valley, and Veyo fall under Zone 8a, experiencing 10°F to 15°F (-12.2°C to -9.4°C) extremes, due to unique desert climate.

To verify your St. George, Utah, USDA zone use our three tools given below: zipcode to planting zone search tool, interactive map, or planting zone table.

St. George Planting Zones by ZipCode

St. George Planting Zones Map

Select or type your St. George location in the selection box below to find its planting zone.

St. George Planting Zones Table

Download St. George Planting Zone Map