When to plant winter squash / pumpkin in Jackson
Winter squash / Pumpkin is frost-tender, so every date keys off Jackson's last spring frost of Mar 3.
Step 1 · Sow
Start seeds indoors
Feb 22 – Mar 15
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 25 – Apr 15
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 18 – Jul 23
Picking runs until conditions turn against the crop.
Window
Days to maturity
85 – 120 d
Jackson's 267-day season leaves this much room.
Winter squash / Pumpkin on Jackson'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
MAR 3
NOV 20
Common questions
When can I sow winter squash / pumpkin outdoors in Jackson?
Direct-sow around late March (Mar 25–Apr 15) in Jackson, based on its local frost dates. Confidence 80%.
When will winter squash / pumpkin be ready to harvest in Jackson?
Expect to harvest from around mid June (Jun 18–Jul 23) in Jackson, based on its local frost dates. Confidence 74%.
When should I start winter squash / pumpkin seeds indoors in Jackson?
Start seeds indoors around late February (Feb 22–Mar 15) in Jackson, based on its local frost dates. Confidence 78%.
When can I transplant winter squash / pumpkin outdoors in Jackson?
Transplant outdoors around late March (Mar 25–Apr 15) in Jackson, based on its local frost dates. Confidence 80%.
How long is the growing season in Jackson?
Jackson has roughly 267 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 Jackson's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.