When to plant kale in New York City

Kale is cold-hardy, so every date keys off New York City's frost dates of Mar 30.
Step 1 · Sow
Start seeds indoors
Feb 16 – Mar 9
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 18 – Apr 8
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 12 – Jun 1
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 15 – Aug 29
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 16 – Nov 5
Maturity window for the second sowing.
Window
Days to maturity
55 – 75 d
New York City's 234-day season leaves this much room.
Kale on New York City'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
MAR 30
NOV 19

Common questions

When can I sow kale outdoors in New York City?

Direct-sow around mid March (Mar 18–Apr 8) in New York City, based on its local frost dates. Confidence 86%.

When will kale be ready to harvest in New York City?

Expect to harvest from around mid May (May 12–Jun 1) in New York City, based on its local frost dates. Confidence 80%.

When should I start kale seeds indoors in New York City?

Start seeds indoors around mid February (Feb 16–Mar 9) in New York City, based on its local frost dates. Confidence 85%.

When can I transplant kale outdoors in New York City?

Transplant outdoors around mid March (Mar 18–Apr 8) in New York City, based on its local frost dates. Confidence 86%.

Can I plant kale in autumn in New York City?

Yes — New York City supports a second, autumn sowing of kale around mid August (Aug 15–Aug 29), timed to mature before the first fall frost.

How long is the growing season in New York City?

New York City has roughly 234 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 New York City's frost dates.

Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.