Plant Beans (bush) in Zone 9a
Seed-starting, transplant & harvest dates for USDA Zone 9a
Zone 9a averages 274 frost-free days, running from a last spring frost around March 1 to a first fall frost around November 30. Beans (bush) needs roughly 55 days from planting out to first harvest, so it uses about 20 percent of that window. Beans (bush) is a tender crop, which is what decides where in the window it belongs.
Beans (bush) resents transplanting and hates cold soil, so direct sow around Mar 8, after the Zone 9a last frost has passed and the soil has warmed. At 55 days to harvest, a 274-day Zone 9a season has room for about 3 sowings, so stagger them rather than planting everything at once.
Planting beans (bush) for a fall harvest in Zone 9a
Yes. Sow beans (bush) by September 8 in Zone 9a. That is 83 days before the average first frost, which covers the 55 days to maturity plus about two weeks for the slower growth that comes with shortening days, plus a two week margin because frost kills beans (bush) outright.
Bush beans mature fast enough for a second sowing almost anywhere with a frost-free window into October.
Fall dates are counted backward from the Zone 9a average first frost, not forward from a sowing date. See the fall planting calendar by zone for the full method.
Spring vs fall beans (bush) in Zone 9a
| Planting | Sow or start | In the ground | Harvest |
|---|---|---|---|
| Spring | Mar 8 | Mar 8 | May 2 |
| Fall | by Sep 8 | Sep 8 | Nov 2 |
Beans (bush) in nearby zones
Further reading on beans (bush)
- Soil temperature for planting seeds
The soil temperature beans (bush) needs before it will germinate.
- Companion planting chart
What to plant with beans (bush) and what to keep away from it.
Other crops in Zone 9a
Frequently asked questions
When should I start beans (bush) in Zone 9a?
Direct sow outdoors around Mar 8.
Can I direct sow beans (bush) in Zone 9a?
Yes, direct sow around Mar 8.
Can I plant beans (bush) in the fall in Zone 9a?
Yes. Sow beans (bush) by September 8 in Zone 9a. That is 83 days before the average first frost, which covers the 55 days to maturity plus about two weeks for the slower growth that comes with shortening days, plus a two week margin because frost kills beans (bush) outright.
Will beans (bush) survive frost in Zone 9a?
No. Beans (bush) is a tender crop and a single light frost ends it, so every Zone 9a planting has to finish before the average first frost.
How many plantings of beans (bush) fit in a Zone 9a season?
About 3. Zone 9a averages 274 frost-free days and beans (bush) needs roughly 55 days plus a couple of weeks of turnaround, so sowing every 35 days keeps a supply coming.