When to plant summer squash / zucchini in Halifax
Summer squash / Zucchini is frost-tender, so every date keys off Halifax's last spring frost of May 13.
Step 1 · Sow
Start seeds indoors
May 9 – May 30
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 28 – Jul 19
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 12 – Aug 27
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
Halifax's 158-day season leaves this much room.
Summer squash / Zucchini on Halifax'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
MAY 13
OCT 20
Common questions
When can I sow summer squash / zucchini outdoors in Halifax?
Direct-sow around late June (Jun 28–Jul 19) in Halifax, based on its local frost dates. Confidence 76%.
When will summer squash / zucchini be ready to harvest in Halifax?
Expect to harvest from around mid August (Aug 12–Aug 27) in Halifax, based on its local frost dates. Confidence 70%.
When should I start summer squash / zucchini seeds indoors in Halifax?
Start seeds indoors around early May (May 9–May 30) in Halifax, based on its local frost dates. Confidence 74%.
When can I transplant summer squash / zucchini outdoors in Halifax?
Transplant outdoors around late June (Jun 28–Jul 19) in Halifax, based on its local frost dates. Confidence 76%.
How long is the growing season in Halifax?
Halifax has roughly 158 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 Halifax's frost dates.
Confidence 78/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.