When to plant winter squash / pumpkin in Chandler
Winter squash / Pumpkin is frost-tender, so every date keys off Chandler's last spring frost of Feb 6.
Step 1 · Sow
Start seeds indoors
Feb 9 – Mar 2
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 14 – Apr 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 7 – Jul 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
85 – 120 d
Chandler's 303-day season leaves this much room.
Winter squash / Pumpkin on Chandler'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
HARVEST
FEB 6
DEC 6
Common questions
When can I sow winter squash / pumpkin outdoors in Chandler?
Direct-sow around mid March (Mar 14–Apr 4) in Chandler, based on its local frost dates. Confidence 81%.
When will winter squash / pumpkin be ready to harvest in Chandler?
Expect to harvest from around early June (Jun 7–Jul 12) in Chandler, based on its local frost dates. Confidence 76%.
When should I start winter squash / pumpkin seeds indoors in Chandler?
Start seeds indoors around early February (Feb 9–Mar 2) in Chandler, based on its local frost dates. Confidence 80%.
When can I transplant winter squash / pumpkin outdoors in Chandler?
Transplant outdoors around mid March (Mar 14–Apr 4) in Chandler, based on its local frost dates. Confidence 81%.
How long is the growing season in Chandler?
Chandler has roughly 303 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 Chandler's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.