When to plant peas in zone 9b
In zone 9b, where the last spring frost typically comes around January 31, sow outdoors December 20 to January 3. For a fall crop, plant September 16 to 30.
The zone 9b schedule for peas
- Sow outdoors
- December 20 to January 3
- First harvest, roughly
- February 18 to March 14
- Plant for a fall crop
- September 16 to 30
From the median frost dates of the NOAA stations assigned to the 1,459 ZIP codes in zone 9b, and the timing recommended by Cooperative Extension guides for peas.
Frost risk in zone 9b
Zones are based on winter cold, not on frost dates, so the last spring frost varies a lot within a zone. Across zone 9b, the typical last frost ranges from about January 12 in the earliest tenth of ZIP codes to March 1 in the latest tenth, and the first fall frost from January 8 to December 28. For a typical place in the zone:
- December 18Risky: a later frost happens in 9 years out of 10
- January 31Typical: frost after this date in half of years
- March 1Safe: a later frost only 1 year in 10
Your dates for peas
Set your ZIP code at the top of the page and we will work out when to plant peas where you live, from the frost records of the nearest NOAA weather station. Your ZIP code is remembered on this device only.
Peas in zone 9b cities
| City | Typical last frost | Plant | Fall |
|---|---|---|---|
| Houston, TX | Jan 30 | Dec 19 to Jan 2 | Oct 5 to 19 |
| Jacksonville, FL | Feb 1 | Dec 21 to Jan 4 | Oct 13 to 27 |
| San Jose, CA | Jan 12 | Dec 1 to 15 | Sep 29 to Oct 13 |
| Fresno, CA | Jan 14 | Dec 3 to 17 | Sep 21 to Oct 5 |
| Sacramento, CA | Jan 12 | Dec 1 to 15 | Sep 23 to Oct 7 |
| Bakersfield, CA | Jan 17 | Dec 6 to 20 | Sep 22 to Oct 6 |
| New Orleans, LA | Jan 24 | Dec 13 to 27 | Oct 10 to 24 |
| Henderson, NV | Jan 20 | Dec 9 to 23 | Sep 22 to Oct 6 |
How to grow peasAll zonesPeas in zone 9aAbout zone 9b
Sources
- How to Grow Peas in Your Garden · Utah State University Extension
- Growing Green Peas in a Home Garden · University of Maryland Extension
- Florida Vegetable Gardening Guide (SP103/VH021) · University of Florida IFAS Extension
- Vegetable Planting Calendar for Maricopa County (AZ1005) · University of Arizona Cooperative Extension
- GN 154: Soil Temperature Conditions for Vegetable Seed Germination (Harrington emergence table) · UC Cooperative Extension, Sacramento County (UC ANR)
- The Fall Vegetable Garden (HO-66-W) · Purdue University Extension
- Fall Vegetable Gardening (SPES-801) · Virginia Cooperative Extension
- Growing Vegetables in Containers · University of Wisconsin-Madison Extension
- Easy Container Vegetables and How to Grow Them · NC State Extension, Onslow County