When to plant tomato in Kansas City
Tomato is frost-tender, so every date keys off Kansas City's last spring frost of Apr 3.
Step 1 · Sow
Start seeds indoors
Mar 4 – Mar 25
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 10 – May 31
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 9 – Aug 3
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Kansas City's 212-day season leaves this much room.
Tomato on Kansas City'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 3
OCT 30
Common questions
When will tomato be ready to harvest in Kansas City?
Expect to harvest from around early July (Jul 9–Aug 3) in Kansas City, based on its local frost dates. Confidence 78%.
When should I start tomato seeds indoors in Kansas City?
Start seeds indoors around early March (Mar 4–Mar 25) in Kansas City, based on its local frost dates. Confidence 83%.
When can I transplant tomato outdoors in Kansas City?
Transplant outdoors around early May (May 10–May 31) in Kansas City, based on its local frost dates. Confidence 84%.
How long is the growing season in Kansas City?
Kansas City 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 Kansas City's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.