USDA Hardiness Zone 7B Growing Guide
Source: USDA Agricultural Research Service Plant Hardiness Zone Map 2023
Southeast and coastal areas — long growing season with mild winters.
Where Zone 7B sits on the national map
Zone 7B highlighted in dark green; neighboring zones in their reference colors. Tap a neighboring zone to compare.
Source: USDA ARS Plant Hardiness Zone Map 2023 · PRISM Climate Group, Oregon State University · 1991-2020 normals
Zone Position
Key Facts — Zone 7B
- Avg. coldest night: 5°F to 10°F (-15°C to -12.2°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: 23 US states, including Massachusetts, California, Texas and 20 more
- Growing Considerations: Southeast and coastal areas — long growing season with mild winters.
What Is Zone 7B?
USDA Hardiness Zone 7B is defined by an average annual extreme minimum temperature between 5°F and 10°F (-15°C to -12.2°C), according to the USDA ARS Plant Hardiness Zone Map 2023.
Coldest avg. low
5°F
USDA PHZM 2023
Warmest avg. low
10°F
USDA PHZM 2023
Coldest avg. low (°C)
-15°C
USDA PHZM 2023
States
23
Where Is Zone 7B Found?
Zone 7B appears across 23 states:
Plants That Thrive in Zone 7B
Plants well-adapted to the temperature range of this zone.
Muscadine Grape
Gardenia
Pomegranate
Okra
Your Zone Is Just One Factor
Hardiness zone tells you about winter cold tolerance — but it doesn't tell you about soil drainage, summer heat, frost dates, flood risk, or contamination proximity. Two Zone 7B parcels can have very different growing outcomes. Your Growable Ground report scores 1,112 plants against all these factors for your specific address.
Your zone is a starting point — your parcel is the whole story
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Frequently Asked Questions
What plants grow in Zone 7B?
Southeast and coastal areas — long growing season with mild winters. Common plants that thrive include Muscadine Grape, Gardenia, Pomegranate, Okra. Actual suitability depends on your parcel's soil, drainage, and microclimate.
What states have Zone 7B?
Zone 7B appears across 23 US states: Massachusetts, California, Texas, New York, Georgia, Oregon, Washington, Alabama, Alaska, Arizona, Arkansas, Delaware, Maryland, Mississippi, Nevada, New Jersey, New Mexico, North Carolina, Oklahoma, South Carolina, Tennessee, Utah, Virginia.
What temperature is USDA Zone 7B?
USDA Hardiness Zone 7B is defined by an average annual extreme minimum temperature between 5°F and 10°F (-15°C to -12.2°C), per the USDA ARS Plant Hardiness Zone Map 2023.