Louisiana · zones 8b–9b
When to plant snap peas in Louisiana.
Sow between Jan 7 to Feb 18 in a typical year, keyed to Louisiana's median last frost around Feb 28. A second, fall sowing fits Sep 8 to Sep 16. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Snap Peas dates for a typical Louisiana season.
Direct sow
Jan 7 to Feb 18
Keyed to the ~Feb 28 last frost. Sow 1" deep, 2" apart.
Fall round
Sep 8 to Sep 16
Counted back from the ~Dec 1 first frost.
Harvest
~62 days later
~0.4 lb per plant over ~3 weeks.
Louisiana spans more than one climate: Zone 9 is the most common zone, but the state runs 8b to 9b. 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 Louisiana: watch for
The pests that find snap peas here.
With about 276 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: Louisiana gives snap peas about 276 frost-free days, and it needs roughly 62 days to a first harvest. That fits about 22 re-sown rounds across the season, so you can keep it coming instead of picking once.
Planting snap peas in Louisiana: questions
When should I plant snap peas in Louisiana?+
In a typical Louisiana year, sow snap peas between Jan 7 to Feb 18, keyed to the state's median last frost around Feb 28. There's also a fall window: Sep 8 to Sep 16. Your exact dates shift with your ZIP code and microclimate.
What USDA zone is Louisiana?+
Louisiana spans zones 8b–9b, 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.