When to plant tomato in Grand Rapids
Tomato is frost-tender, so every date keys off Grand Rapids's last spring frost of Apr 30.
Step 1 · Sow
Start seeds indoors
Apr 4 – Apr 25
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 2 – Jun 23
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 1 – Aug 26
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Grand Rapids's 166-day season leaves this much room.
Tomato on Grand Rapids'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 30
OCT 16
Common questions
When will tomato be ready to harvest in Grand Rapids?
Expect to harvest from around early August (Aug 1–Aug 26) in Grand Rapids, based on its local frost dates. Confidence 78%.
When should I start tomato seeds indoors in Grand Rapids?
Start seeds indoors around early April (Apr 4–Apr 25) in Grand Rapids, based on its local frost dates. Confidence 83%.
When can I transplant tomato outdoors in Grand Rapids?
Transplant outdoors around early June (Jun 2–Jun 23) in Grand Rapids, based on its local frost dates. Confidence 84%.
How long is the growing season in Grand Rapids?
Grand Rapids has roughly 166 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 Grand Rapids's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.