When to plant tomato in Fargo
Tomato is frost-tender, so every date keys off Fargo's last spring frost of May 11.
Step 1 · Sow
Start seeds indoors
Apr 8 – Apr 29
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 1 – Jun 22
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 31 – Aug 25
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Fargo's 144-day season leaves this much room.
Tomato 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 tomato be ready to harvest in Fargo?
Expect to harvest from around late July (Jul 31–Aug 25) in Fargo, based on its local frost dates. Confidence 80%.
When should I start tomato seeds indoors in Fargo?
Start seeds indoors around early April (Apr 8–Apr 29) in Fargo, based on its local frost dates. Confidence 85%.
When can I transplant tomato outdoors in Fargo?
Transplant outdoors around early June (Jun 1–Jun 22) in Fargo, based on its local frost dates. Confidence 86%.
How long is the growing season in Fargo?
Fargo has roughly 144 frost-free days, which is enough time to grow tomato to maturity outdoors.
The rule of thumb
Sow tomato 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. 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.