When to plant green beans in zone 9b
In zone 9b, where the last spring frost typically comes around January 31, sow outdoors March 8 to 22. For a fall crop, plant September 16 to 23.
The zone 9b schedule for green beans
- Sow outdoors
- March 8 to 22
- Soil warm enough (60°F), about
- March 8
- Safest planting date (10% frost risk)
- March 1
- First harvest, roughly
- April 27 to May 31
- Plant for a fall crop
- September 16 to 23
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 green beans.
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
Green Beans are killed by frost, so if you want to be safe, plant out after the safe date rather than the typical one, or be ready to cover plants on a cold night.
Your dates for green beans
Set your ZIP code at the top of the page and we will work out when to plant green beans where you live, from the frost records of the nearest NOAA weather station. Your ZIP code is remembered on this device only.
Green Beans in zone 9b cities
| City | Typical last frost | Plant | Fall |
|---|---|---|---|
| Houston, TX | Jan 30 | Feb 21 to Mar 7 | Oct 5 to 12 |
| Jacksonville, FL | Feb 1 | Feb 18 to Mar 4 | Oct 13 to 20 |
| San Jose, CA | Jan 12 | Apr 26 to May 10 | Sep 29 to Oct 6 |
| Fresno, CA | Jan 14 | Apr 5 to 19 | Sep 21 to 28 |
| Sacramento, CA | Jan 12 | Apr 9 to 23 | Sep 23 to 30 |
| Bakersfield, CA | Jan 17 | Mar 29 to Apr 12 | Sep 22 to 29 |
| New Orleans, LA | Jan 24 | Feb 18 to Mar 4 | Oct 10 to 17 |
| Henderson, NV | Jan 20 | Mar 13 to 27 | Sep 22 to 29 |
How to grow green beansAll zonesGreen Beans in zone 9aAbout zone 9b
Sources
- How to Grow Beans in Your Garden · Utah State University Extension
- Growing Beans 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
- Home Garden Beans (HGV-8) · University of Hawaii CTAHR
- 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
- Vegetable Gardening in Containers · Texas A&M AgriLife Extension
- Growing Vegetables in Containers · University of Wisconsin-Madison Extension