When to plant cauliflower in Cleveland

Cauliflower 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 7 – Apr 28
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 6 – Jul 1
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 21 – Aug 4
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 26 – Oct 21
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Cleveland's 227-day season leaves this much room.
Cauliflower 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 cauliflower be ready to harvest in Cleveland?

Expect to harvest from around early June (Jun 6–Jul 1) in Cleveland, based on its local frost dates. Confidence 76%.

When should I start cauliflower 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 cauliflower outdoors in Cleveland?

Transplant outdoors around early April (Apr 7–Apr 28) in Cleveland, based on its local frost dates. Confidence 81%.

Can I plant cauliflower in autumn in Cleveland?

Yes — Cleveland supports a second, autumn sowing of cauliflower around late July (Jul 21–Aug 4), 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 cauliflower to maturity outdoors.

The rule of thumb

Sow cauliflower 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.