USDA Hardiness Zone 11A Growing Guide
Source: USDA Agricultural Research Service Plant Hardiness Zone Map 2023
Hawaii and US territories — year-round tropical growing.
Where Zone 11A sits on the national map
Zone 11A 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 11A
- Avg. coldest night: 40°F to 45°F (4.4°C to 7.2°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: 3 US states, including California, Florida, Hawaii
- Growing Considerations: Hawaii and US territories — year-round tropical growing.
What Is Zone 11A?
USDA Hardiness Zone 11A is defined by an average annual extreme minimum temperature between 40°F and 45°F (4.4°C to 7.2°C), according to the USDA ARS Plant Hardiness Zone Map 2023.
Coldest avg. low
40°F
USDA PHZM 2023
Warmest avg. low
45°F
USDA PHZM 2023
Coldest avg. low (°C)
4.4°C
USDA PHZM 2023
States
3
Plants That Thrive in Zone 11A
Plants well-adapted to the temperature range of this zone.
Breadfruit
Taro
Cacao
Lychee
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 11A 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 11A?
Hawaii and US territories — year-round tropical growing. Common plants that thrive include Breadfruit, Taro, Cacao, Lychee. Actual suitability depends on your parcel's soil, drainage, and microclimate.
What states have Zone 11A?
Zone 11A appears across 3 US states: California, Florida, Hawaii.
What temperature is USDA Zone 11A?
USDA Hardiness Zone 11A is defined by an average annual extreme minimum temperature between 40°F and 45°F (4.4°C to 7.2°C), per the USDA ARS Plant Hardiness Zone Map 2023.