Arizona · zones 5b–10a
When to plant green beans in Arizona.
Sow between Feb 5 to Mar 28 in a typical year, keyed to Arizona's median last frost around Feb 5. A second, fall sowing fits Aug 1 to Sep 3. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Green Beans dates for a typical Arizona season.
Direct sow
Feb 5 to Mar 28
Keyed to the ~Feb 5 last frost. Sow 1" deep, 3" apart.
Fall round
Aug 1 to Sep 3
Counted back from the ~Nov 15 first frost.
Harvest
~55 days later
~0.75 lb per plant over ~3 weeks.
Arizona spans more than one climate: Zone 9 is the most common zone, but the state runs 5b to 10a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
In Arizona: watch for
The pests that find green beans here.
With about 283 frost-free days, bush bean spends longer in the ground here than in most of the country, which widens the window in which mexican bean beetle can find it. Scout weekly from midseason and act on the first signs.
Coppery ladybug-like beetles; leaves skeletonized to lace.
Organic fix: Handpick adults and yellow egg clusters; neem.
Orange or white spots on leaves late in the season.
Organic fix: Water at the base, space plants, spray neem.
Anthracnose
Sunken dark-red cankers on the pods, and leaf veins turning brick-red to black underneath.
Organic fix: Start with certified seed, water at the base, and stay out of the patch while the leaves are wet.
Your season math: Arizona gives green beans about 283 frost-free days, and it needs roughly 55 days to a first harvest. That fits about 23 re-sown rounds across the season, so you can keep it coming instead of picking once.
Planting green beans in Arizona: questions
When should I plant green beans in Arizona?+
In a typical Arizona year, sow green beans between Feb 5 to Mar 28, keyed to the state's median last frost around Feb 5. There's also a fall window: Aug 1 to Sep 3. Your exact dates shift with your ZIP code and microclimate.
What USDA zone is Arizona?+
Arizona spans zones 5b–10a, mostly zone 9. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many green beans plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.