When to plant summer squash / zucchini in Jersey City

Summer squash / Zucchini is frost-tender, so every date keys off Jersey City's last spring frost of Apr 3.
Step 1 · Sow
Start seeds indoors
Mar 29 – Apr 19
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 15 – Jun 5
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 29 – Jul 14
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
Jersey City's 223-day season leaves this much room.
Summer squash / Zucchini on Jersey City's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
APR 3
NOV 11

Common questions

When can I sow summer squash / zucchini outdoors in Jersey City?

Direct-sow around mid May (May 15–Jun 5) in Jersey City, based on its local frost dates. Confidence 82%.

When will summer squash / zucchini be ready to harvest in Jersey City?

Expect to harvest from around late June (Jun 29–Jul 14) in Jersey City, based on its local frost dates. Confidence 76%.

When should I start summer squash / zucchini seeds indoors in Jersey City?

Start seeds indoors around late March (Mar 29–Apr 19) in Jersey City, based on its local frost dates. Confidence 81%.

When can I transplant summer squash / zucchini outdoors in Jersey City?

Transplant outdoors around mid May (May 15–Jun 5) in Jersey City, based on its local frost dates. Confidence 82%.

How long is the growing season in Jersey City?

Jersey City has roughly 223 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 Jersey City's frost dates.

Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.