Arizona · zones 5b–10a
When to plant snap peas in Arizona.
Sow between Dec 15 to Jan 26 in a typical year, keyed to Arizona's median last frost around Feb 5. A second, fall sowing fits Aug 23 to Aug 31. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Snap Peas dates for a typical Arizona season.
Direct sow
Dec 15 to Jan 26
Keyed to the ~Feb 5 last frost. Sow 1" deep, 2" apart.
Fall round
Aug 23 to Aug 31
Counted back from the ~Nov 15 first frost.
Harvest
~62 days later
~0.4 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 snap peas here.
With about 283 frost-free days, snap pea spends longer in the ground here than in most of the country, which widens the window in which pea aphid can find it. Scout weekly from midseason and act on the first signs.
Clusters on the tender growing tips where new tendrils form.
Organic fix: Knock colonies loose with a firm blast from the hose before they build.
White powder on leaves after warm dry days and cool, dewy nights.
Organic fix: Grow resistant varieties and trellis so vines are not lying on each other.
Root rot
Seedlings stall and yellow from the bottom up, and a lifted plant shows soft brown roots instead of firm white ones.
Organic fix: Sow into a raised or well-drained bed, work compost into heavy ground, ease off the water, and move peas to fresh ground next year.
Your season math: Arizona gives snap peas about 283 frost-free days, and it needs roughly 62 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 snap peas in Arizona: questions
When should I plant snap peas in Arizona?+
In a typical Arizona year, sow snap peas between Dec 15 to Jan 26, keyed to the state's median last frost around Feb 5. There's also a fall window: Aug 23 to Aug 31. 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 snap peas 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.