When to plant winter squash / pumpkin in Worcester
Winter squash / Pumpkin is frost-tender, so every date keys off Worcester's last spring frost of Apr 21.
Step 1 · Sow
Start seeds indoors
Apr 9 – Apr 30
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 7 – Jun 28
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 31 – Oct 5
Picking runs until conditions turn against the crop.
Window
Days to maturity
85 – 120 d
Worcester's 180-day season leaves this much room.
Winter squash / Pumpkin on Worcester'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
FROST
FROST
HARVEST
APR 21
OCT 22
Common questions
When can I sow winter squash / pumpkin outdoors in Worcester?
Direct-sow around early June (Jun 7–Jun 28) in Worcester, based on its local frost dates. Confidence 83%.
When will winter squash / pumpkin be ready to harvest in Worcester?
Expect to harvest from around late August (Aug 31–Oct 5) in Worcester, based on its local frost dates. Confidence 77%.
When should I start winter squash / pumpkin seeds indoors in Worcester?
Start seeds indoors around early April (Apr 9–Apr 30) in Worcester, based on its local frost dates. Confidence 82%.
When can I transplant winter squash / pumpkin outdoors in Worcester?
Transplant outdoors around early June (Jun 7–Jun 28) in Worcester, based on its local frost dates. Confidence 83%.
How long is the growing season in Worcester?
Worcester has roughly 180 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 Worcester's frost dates.
Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.