USDA Hardiness Zone 7A Growing Guide
Source: USDA Agricultural Research Service Plant Hardiness Zone Map 2023
Upper South and Pacific coast — mild winters support diverse plantings.
Where Zone 7A sits on the national map
Zone Position
Key Facts — Zone 7A
- Avg. coldest night: 0°F to 5°F (-17.8°C to -15°C) — the band of average annual extreme minimum temperatures that defines this zone (USDA ARS PHZM 2023)
- What that means: in an average year your coldest night lands somewhere in that 5°F window. Actual lows can drop colder in extreme winters; daytime highs are not bounded by this number.
- Found In: 35 US states, including Massachusetts, California, Texas and 32 more
- Growing Considerations: Upper South and Pacific coast — mild winters support diverse plantings.
What Is Zone 7A?
USDA Hardiness Zone 7A is defined by an average annual extreme minimum temperature between 0°F and 5°F (-17.8°C to -15°C), according to the USDA ARS Plant Hardiness Zone Map 2023.
Coldest avg. low
0°F
USDA PHZM 2023
Warmest avg. low
5°F
USDA PHZM 2023
Coldest avg. low (°C)
-17.8°C
USDA PHZM 2023
States
35
Where Is Zone 7A Found?
Zone 7A appears across 35 states:
Plants That Thrive in Zone 7A
Plants well-adapted to the temperature range of this zone.
Crape Myrtle
Fig
Camellia
Blueberry
Your Zone Is Just One Factor
Zone 7A covers 401 counties across 30 states, and their growing seasons are not the same. Whatcom County, Washington measures 131 frost-free days a year; Jefferson County, Kentucky measures 245 — a 114-day difference under the same winter low, before you get to soil drainage, summer heat, flood risk, or contamination proximity. Your Growable Ground report scores 1,112 plants against all of it for your specific address.
Measured across the 401 counties whose USDA PHZM centroid falls in Zone 7A — NOAA 1991–2020 Climate Normals, 28°F killing freeze. Median 219 days.
Your zone is a starting point — your parcel is the whole story
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Frequently Asked Questions
What plants grow in Zone 7A?
Upper South and Pacific coast — mild winters support diverse plantings. Common plants that thrive include Crape Myrtle, Fig, Camellia, Blueberry. Actual suitability depends on your parcel's soil, drainage, and microclimate.
What states have Zone 7A?
Zone 7A appears across 35 US states: Massachusetts, California, Texas, New York, Colorado, Georgia, Ohio, Oregon, Washington, Alaska, Arizona, Arkansas, Connecticut, Delaware, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Maryland, Michigan, Missouri, Nevada, New Jersey, New Mexico, North Carolina, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Utah, Virginia, West Virginia.
What temperature is USDA Zone 7A?
USDA Hardiness Zone 7A is defined by an average annual extreme minimum temperature between 0°F and 5°F (-17.8°C to -15°C), per the USDA ARS Plant Hardiness Zone Map 2023.