When to plant kale in Halifax
Kale is cold-hardy, so every date keys off Halifax's frost dates of May 5.
Step 1 · Sow
Start seeds indoors
Mar 24 – Apr 14
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 14 – May 5
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 8 – Jun 28
Picking runs until conditions turn against the crop.
Window
Days to maturity
55 – 75 d
Halifax's 163-day season leaves this much room.
Kale 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 5
OCT 15
Common questions
When can I sow kale outdoors in Halifax?
Direct-sow around mid April (Apr 14–May 5) in Halifax, based on its local frost dates. Confidence 70%.
When will kale be ready to harvest in Halifax?
Expect to harvest from around early June (Jun 8–Jun 28) in Halifax, based on its local frost dates. Confidence 63%.
When should I start kale seeds indoors in Halifax?
Start seeds indoors around late March (Mar 24–Apr 14) in Halifax, based on its local frost dates. Confidence 67%.
When can I transplant kale outdoors in Halifax?
Transplant outdoors around mid April (Apr 14–May 5) in Halifax, based on its local frost dates. Confidence 70%.
How long is the growing season in Halifax?
Halifax has roughly 163 frost-free days, which is enough time to grow kale to maturity outdoors.
The rule of thumb
Sow kale as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Halifax's frost dates.
Confidence 70/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.