Buena Park, California: planting zone & frost dates
Buena Park is in USDA plant hardiness zone 10a, where the average coldest winter night reaches 30 to 35°F (-1.1 to 1.7°C). Frost is rare here.
Frost dates
Frost data comes from NOAA station FULLERTON MUNI AP, CA (USW00003166), 1.9 mi (3.1 km) from the city center and 23 ft higher than the city center (+7 m). Record used for the 1991–2020 normals: 13 years.
Why your yard may differ from the station: microclimates.
Hardiness zone across Buena Park
All 2 ZIP codes covering Buena Park are in zone 10a.
Vegetable planting calendar for Buena Park
Windows below are for a frost-free climate: plant cool-season crops from fall through late winter and warm-season crops in late winter–spring, with a second warm-season round in late summer for some crops.
| Crop | Planting windows (frost-free climate) | |||
|---|---|---|---|---|
| Tomato | Jan 15 – Mar 31; Aug 1 – Sep 15 | |||
| Pepper | Feb 1 – Apr 15; Jul 15 – Aug 31 | |||
| Lettuce | Sep 15 – Feb 15 | |||
| Green Beans | Feb 15 – Apr 30; Aug 15 – Sep 30 | |||
| Sweet Corn | Feb 15 – Apr 15; Aug 1 – Aug 31 | |||
| Zucchini & Summer Squash | Feb 15 – Apr 15; Aug 1 – Sep 15 | |||
| Cucumber | Feb 15 – Apr 15; Aug 1 – Sep 15 | |||
| Carrot | Sep 1 – Feb 28 | |||
| Onion | Oct 15 – Jan 15 | |||
| Potato | Jan 1 – Feb 28; Sep 1 – Oct 15 | |||
| Basil | Mar 1 – Jun 30; Aug 15 – Sep 30 | |||
| Spinach | Oct 1 – Feb 15 | |||
| Kale | Sep 1 – Feb 15 | |||
| Broccoli | Sep 1 – Jan 15 | |||
| Peas | Oct 1 – Jan 31 | |||
| Eggplant | Feb 15 – Apr 30; Jul 15 – Aug 31 | |||
| Cabbage | Sep 1 – Jan 31 | |||
| Radish | Sep 15 – Mar 15 | |||
| Strawberry | Oct 1 – Nov 30 | |||
| Beets | Sep 15 – Feb 28 | |||
Nearby cities in California
- Fullerton — zone 10a, frost rare
- Norwalk — zone 10b, frost rare
- Garden Grove — zone 10b, frost rare
- Westminster — zone 10a, frost rare
- Whittier — zone 10b, frost rare
- Lakewood — zone 10a, frost rare
More: all California cities · other zone 10a cities: Los Angeles, CA, Oakland, CA, Tampa, FL, Orlando, FL, Riverside, CA, Corpus Christi, TX, Port St. Lucie, FL, Scottsdale, AZ
Buena Park gardening questions
Does it ever frost in Buena Park, CA?
Rarely. From 1991 to 2020, NOAA's Fullerton Municipal Airport, CA station, 1.9 mi from the city center, reached 32°F in only 7% of years — too seldom for NOAA to compute frost dates. Zone 10a means the coldest night of an average winter is 30 to 35°F (-1.1 to 1.7°C), so tender plants may still need covering in an unusual cold snap.
When should I plant tomatoes in Buena Park, CA?
Without a frost season, plant by temperature: set out tomatoes Jan 15 – Mar 31 and Aug 1 – Sep 15. Fruit set drops when nights stay above about 75°F, so avoid timing harvests for the hottest weeks. More: tomato planting by zone.
When is the best time for lettuce and broccoli in Buena Park?
Cool-season crops do best in the mild months: plant lettuce Sep 15 – Feb 15 and broccoli Sep 1 – Jan 15. Summer heat makes lettuce bolt and broccoli flower early.
Did Buena Park's hardiness zone change on the 2023 map?
Yes, but toward colder: Buena Park went from zone 10b (2012) to zone 10a (2023). Only about 1% of U.S. ZIP codes moved colder; these changes mostly reflect added weather stations and improved mapping methods rather than a colder climate. Why the 2023 map is warmer.
How does Buena Park compare with Garden Grove, CA?
Buena Park is zone 10a and Garden Grove is zone 10b. Frost is rare in both Buena Park and Garden Grove, CA (6 miles away), so both garden year-round.