When to plant broccoli in Fargo
Broccoli is cold-hardy, so every date keys off Fargo's frost dates of May 11.
Step 1 · Sow
Start seeds indoors
Mar 30 – Apr 20
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 27 – May 18
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 26 – Jul 21
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 18 – Jul 2
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 24 – Sep 18
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Fargo's 144-day season leaves this much room.
Broccoli on Fargo'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
MAY 11
OCT 2
Common questions
When will broccoli be ready to harvest in Fargo?
Expect to harvest from around late June (Jun 26–Jul 21) in Fargo, based on its local frost dates. Confidence 80%.
When should I start broccoli seeds indoors in Fargo?
Start seeds indoors around late March (Mar 30–Apr 20) in Fargo, based on its local frost dates. Confidence 85%.
When can I transplant broccoli outdoors in Fargo?
Transplant outdoors around late April (Apr 27–May 18) in Fargo, based on its local frost dates. Confidence 89%.
Can I plant broccoli in autumn in Fargo?
Yes — Fargo supports a second, autumn sowing of broccoli around mid June (Jun 18–Jul 2), timed to mature before the first fall frost.
How long is the growing season in Fargo?
Fargo has roughly 144 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 Fargo's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.