When to plant summer squash / zucchini in Overland Park

Summer squash / Zucchini is frost-tender, so every date keys off Overland Park's last spring frost of Apr 8.
Step 1 · Sow
Start seeds indoors
Apr 4 – Apr 25
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 14 – Jun 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 28 – Jul 13
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
Overland Park's 200-day season leaves this much room.
Summer squash / Zucchini on Overland Park'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 8
OCT 27

Common questions

When can I sow summer squash / zucchini outdoors in Overland Park?

Direct-sow around mid May (May 14–Jun 4) in Overland Park, based on its local frost dates. Confidence 81%.

When will summer squash / zucchini be ready to harvest in Overland Park?

Expect to harvest from around late June (Jun 28–Jul 13) in Overland Park, based on its local frost dates. Confidence 76%.

When should I start summer squash / zucchini seeds indoors in Overland Park?

Start seeds indoors around early April (Apr 4–Apr 25) in Overland Park, based on its local frost dates. Confidence 80%.

When can I transplant summer squash / zucchini outdoors in Overland Park?

Transplant outdoors around mid May (May 14–Jun 4) in Overland Park, based on its local frost dates. Confidence 81%.

How long is the growing season in Overland Park?

Overland Park has roughly 200 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 Overland Park's frost dates.

Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.