When to plant tomato in Cincinnati
Tomato is frost-tender, so every date keys off Cincinnati's last spring frost of Apr 13.
Step 1 · Sow
Start seeds indoors
Mar 23 – Apr 13
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 17 – Jun 7
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 16 – Aug 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Cincinnati's 194-day season leaves this much room.
Tomato 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
FROST
FROST
APR 13
OCT 22
Common questions
When will tomato be ready to harvest in Cincinnati?
Expect to harvest from around mid July (Jul 16–Aug 10) in Cincinnati, based on its local frost dates. Confidence 79%.
When should I start tomato seeds indoors in Cincinnati?
Start seeds indoors around late March (Mar 23–Apr 13) in Cincinnati, based on its local frost dates. Confidence 84%.
When can I transplant tomato outdoors in Cincinnati?
Transplant outdoors around mid May (May 17–Jun 7) in Cincinnati, based on its local frost dates. Confidence 85%.
How long is the growing season in Cincinnati?
Cincinnati has roughly 194 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 Cincinnati's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.