When to plant broccoli in Columbus

Broccoli is cold-hardy, so every date keys off Columbus's frost dates of Mar 6.
Step 1 · Sow
Start seeds indoors
Jan 23 – Feb 13
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 20 – Mar 13
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Apr 21 – May 16
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 8 – Aug 22
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 14 – Nov 8
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Columbus's 262-day season leaves this much room.
Broccoli on Columbus'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 6
NOV 22

Common questions

When will broccoli be ready to harvest in Columbus?

Expect to harvest from around late April (Apr 21–May 16) in Columbus, based on its local frost dates. Confidence 79%.

When should I start broccoli seeds indoors in Columbus?

Start seeds indoors around late January (Jan 23–Feb 13) in Columbus, based on its local frost dates. Confidence 84%.

When can I transplant broccoli outdoors in Columbus?

Transplant outdoors around mid February (Feb 20–Mar 13) in Columbus, based on its local frost dates. Confidence 88%.

Can I plant broccoli in autumn in Columbus?

Yes — Columbus supports a second, autumn sowing of broccoli around early August (Aug 8–Aug 22), timed to mature before the first fall frost.

How long is the growing season in Columbus?

Columbus has roughly 262 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 Columbus's frost dates.

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