Louisiana · zones 8b–9b
When to plant zucchini in Louisiana.
Sow between Mar 7 to Jun 20 in a typical year, keyed to Louisiana's median last frost around Feb 28. A second, fall sowing fits Aug 17 to Sep 5. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Zucchini dates for a typical Louisiana season.
Direct sow
Mar 7 to Jun 20
Keyed to the ~Feb 28 last frost. Sow 1" deep, 24" apart.
Fall round
Aug 17 to Sep 5
Counted back from the ~Dec 1 first frost.
Harvest
~50 days later
~8 lb per plant over ~5 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.