When to plant winter squash / pumpkin in Strasbourg

Winter squash / Pumpkin is frost-tender, so every date keys off Strasbourg's last spring frost of Apr 9.
Step 1 · Sow
Start seeds indoors
Apr 2 – Apr 23
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 31 – Jun 21
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 24 – Sep 28
Picking runs until conditions turn against the crop.
Window
Days to maturity
85 – 120 d
Strasbourg's 206-day season leaves this much room.
Winter squash / Pumpkin on Strasbourg'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 9
OCT 30

Common questions

When can I sow winter squash / pumpkin outdoors in Strasbourg?

Direct-sow around late May (May 31–Jun 21) in Strasbourg, based on its local frost dates. Confidence 86%.

When will winter squash / pumpkin be ready to harvest in Strasbourg?

Expect to harvest from around late August (Aug 24–Sep 28) in Strasbourg, based on its local frost dates. Confidence 80%.

When should I start winter squash / pumpkin seeds indoors in Strasbourg?

Start seeds indoors around early April (Apr 2–Apr 23) in Strasbourg, based on its local frost dates. Confidence 85%.

When can I transplant winter squash / pumpkin outdoors in Strasbourg?

Transplant outdoors around late May (May 31–Jun 21) in Strasbourg, based on its local frost dates. Confidence 86%.

How long is the growing season in Strasbourg?

Strasbourg has roughly 206 frost-free days, which is enough time to grow winter squash / pumpkin to maturity outdoors.

The rule of thumb

Sow winter squash / pumpkin 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 Strasbourg's frost dates.

Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.