When to plant cauliflower in Cincinnati

Cauliflower is cold-hardy, so every date keys off Cincinnati's frost dates of Apr 13.
Step 1 · Sow
Start seeds indoors
Mar 2 – Mar 23
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 30 – Apr 20
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 29 – Jun 23
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 29 – Jul 13
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 4 – Sep 29
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Cincinnati's 194-day season leaves this much room.
Cauliflower on Cincinnati'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 13
OCT 22

Common questions

When will cauliflower be ready to harvest in Cincinnati?

Expect to harvest from around late May (May 29–Jun 23) in Cincinnati, based on its local frost dates. Confidence 79%.

When should I start cauliflower seeds indoors in Cincinnati?

Start seeds indoors around early March (Mar 2–Mar 23) in Cincinnati, based on its local frost dates. Confidence 84%.

When can I transplant cauliflower outdoors in Cincinnati?

Transplant outdoors around late March (Mar 30–Apr 20) in Cincinnati, based on its local frost dates. Confidence 88%.

Can I plant cauliflower in autumn in Cincinnati?

Yes — Cincinnati supports a second, autumn sowing of cauliflower around late June (Jun 29–Jul 13), timed to mature before the first fall frost.

How long is the growing season in Cincinnati?

Cincinnati has roughly 194 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 Cincinnati's frost dates.

Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.