When to plant summer squash / zucchini in Los Angeles
Summer squash / Zucchini is frost-tender, so every date keys off Los Angeles's last spring frost.
Step 1 · Sow
Direct sow outdoors
Mar 19 – Apr 9
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 3 – May 18
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
From sowing to first pick.
Common questions
When can I sow summer squash / zucchini outdoors in Los Angeles?
Direct-sow around mid March (Mar 19–Apr 9) in Los Angeles, based on its local frost dates. Confidence 78%.
When will summer squash / zucchini be ready to harvest in Los Angeles?
Expect to harvest from around early May (May 3–May 18) in Los Angeles, based on its local frost dates. Confidence 72%.
How long is the growing season in Los Angeles?
Los Angeles has roughly 365 frost-free days, which is enough time to grow summer squash / zucchini to maturity outdoors.
The rule of thumb
Sow summer squash / zucchini 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and Los Angeles's frost dates.
Confidence 80/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.