When to plant broccoli in Cleveland

Broccoli 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
Jun 3 – Jun 28
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 2 – Aug 16
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 8 – Nov 2
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Cleveland's 227-day season leaves this much room.
Broccoli 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 will broccoli be ready to harvest in Cleveland?

Expect to harvest from around early June (Jun 3–Jun 28) in Cleveland, based on its local frost dates. Confidence 76%.

When should I start broccoli 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 broccoli 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 broccoli in autumn in Cleveland?

Yes — Cleveland supports a second, autumn sowing of broccoli around early August (Aug 2–Aug 16), 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 broccoli to maturity outdoors.

The rule of thumb

Sow broccoli 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.