When to plant kale in Buffalo

Kale is cold-hardy, so every date keys off Buffalo's frost dates of Apr 30.
Step 1 · Sow
Start seeds indoors
Mar 19 – Apr 9
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 9 – Apr 30
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 3 – Jun 23
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 13 – Jul 27
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 13 – Oct 3
Maturity window for the second sowing.
Window
Days to maturity
55 – 75 d
Buffalo's 162-day season leaves this much room.
Kale on Buffalo'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
APR 30
OCT 17

Common questions

When can I sow kale outdoors in Buffalo?

Direct-sow around early April (Apr 9–Apr 30) in Buffalo, based on its local frost dates. Confidence 85%.

When will kale be ready to harvest in Buffalo?

Expect to harvest from around early June (Jun 3–Jun 23) in Buffalo, based on its local frost dates. Confidence 76%.

When should I start kale seeds indoors in Buffalo?

Start seeds indoors around mid March (Mar 19–Apr 9) in Buffalo, based on its local frost dates. Confidence 81%.

When can I transplant kale outdoors in Buffalo?

Transplant outdoors around early April (Apr 9–Apr 30) in Buffalo, based on its local frost dates. Confidence 85%.

Can I plant kale in autumn in Buffalo?

Yes — Buffalo supports a second, autumn sowing of kale around mid July (Jul 13–Jul 27), timed to mature before the first fall frost.

How long is the growing season in Buffalo?

Buffalo has roughly 162 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 Buffalo's frost dates.

Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.