When to plant tomato in Louisville
Tomato is frost-tender, so every date keys off Louisville's last spring frost of Apr 1.
Step 1 · Sow
Start seeds indoors
Mar 6 – Mar 27
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 28 – May 19
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 27 – Jul 22
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Louisville's 212-day season leaves this much room.
Tomato on Louisville'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 1
OCT 29
Common questions
When will tomato be ready to harvest in Louisville?
Expect to harvest from around late June (Jun 27–Jul 22) in Louisville, based on its local frost dates. Confidence 74%.
When should I start tomato seeds indoors in Louisville?
Start seeds indoors around early March (Mar 6–Mar 27) in Louisville, based on its local frost dates. Confidence 78%.
When can I transplant tomato outdoors in Louisville?
Transplant outdoors around late April (Apr 28–May 19) in Louisville, based on its local frost dates. Confidence 80%.
How long is the growing season in Louisville?
Louisville has roughly 212 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 Louisville's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.