North Tustin, CA planting zone & frost dates
North Tustin is in USDA hardiness zone 10b. Frost is rare here: in most years temperatures do not drop to 32°F.
USDA hardiness zone10bavg. extreme winter low 35°F to 40°F
FrostRarein most years the nearest weather station records no 32°F freeze
Useful for zone 10b gardens
- Drip irrigation kit — saves water in long, hot seasons
- Shade cloth — protects plants from midday sun
- Soil moisture meter
- Plants for zone 10
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Nearby cities
- Tustin zone 10a
- Orange zone 10b
- Santa Ana zone 10b
- Irvine zone 10b
- Turtle Rock zone 10b
- Yorba Linda zone 10a
- Placentia zone 10b
- Anaheim zone 10b
Questions
What growing zone is North Tustin, CA?
North Tustin is in USDA Plant Hardiness Zone 10b (average extreme winter low 35°F to 40°F), according to the USDA 2023 map.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Santa Ana Fire Stn, CA (USC00047888), 7.1 km (4.4 mi) from the city center, elevation 41 m, based on 28 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.