When to plant broccoli in Omaha
Broccoli is cold-hardy, so every date keys off Omaha's frost dates of Apr 18.
Step 1 · Sow
Start seeds indoors
Mar 7 – Mar 28
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
Jun 30 – Jul 14
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 5 – Sep 30
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Omaha's 176-day season leaves this much room.
Broccoli on Omaha'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
FROST
FROST
APR 18
OCT 14
Common questions
When will broccoli be ready to harvest in Omaha?
Expect to harvest from around early June (Jun 3–Jun 28) in Omaha, based on its local frost dates. Confidence 78%.
When should I start broccoli seeds indoors in Omaha?
Start seeds indoors around early March (Mar 7–Mar 28) in Omaha, based on its local frost dates. Confidence 83%.
When can I transplant broccoli outdoors in Omaha?
Transplant outdoors around early April (Apr 4–Apr 25) in Omaha, based on its local frost dates. Confidence 87%.
Can I plant broccoli in autumn in Omaha?
Yes — Omaha supports a second, autumn sowing of broccoli around late June (Jun 30–Jul 14), timed to mature before the first fall frost.
How long is the growing season in Omaha?
Omaha has roughly 176 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 Omaha's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.