When to plant kale in Cleveland

Kale is cold-hardy, so every date keys off Cleveland's frost dates of Apr 5.
Step 1 · Sow
Start seeds indoors
Feb 22 – Mar 15
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 4 – Apr 25
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 29 – Jun 18
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 12 – Aug 26
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 13 – Nov 2
Maturity window for the second sowing.
Window
Days to maturity
55 – 75 d
Cleveland's 227-day season leaves this much room.
Kale on Cleveland'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 5
NOV 16

Common questions

When can I sow kale outdoors in Cleveland?

Direct-sow around early April (Apr 4–Apr 25) in Cleveland, based on its local frost dates. Confidence 81%.

When will kale be ready to harvest in Cleveland?

Expect to harvest from around late May (May 29–Jun 18) in Cleveland, based on its local frost dates. Confidence 76%.

When should I start kale seeds indoors in Cleveland?

Start seeds indoors around late February (Feb 22–Mar 15) in Cleveland, based on its local frost dates. Confidence 80%.

When can I transplant kale outdoors in Cleveland?

Transplant outdoors around early April (Apr 4–Apr 25) in Cleveland, based on its local frost dates. Confidence 81%.

Can I plant kale in autumn in Cleveland?

Yes — Cleveland supports a second, autumn sowing of kale around mid August (Aug 12–Aug 26), timed to mature before the first fall frost.

How long is the growing season in Cleveland?

Cleveland has roughly 227 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 Cleveland's frost dates.

Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.