When to plant tomato in Tacoma
Tomato is frost-tender, so every date keys off Tacoma's last spring frost of Mar 8.
Step 1 · Sow
Start seeds indoors
Feb 15 – Mar 8
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 12 – Jul 3
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 11 – Sep 5
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Tacoma's 246-day season leaves this much room.
Tomato on Tacoma'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
MAR 8
NOV 13
Common questions
When will tomato be ready to harvest in Tacoma?
Expect to harvest from around mid August (Aug 11–Sep 5) in Tacoma, based on its local frost dates. Confidence 76%.
When should I start tomato seeds indoors in Tacoma?
Start seeds indoors around mid February (Feb 15–Mar 8) in Tacoma, based on its local frost dates. Confidence 81%.
When can I transplant tomato outdoors in Tacoma?
Transplant outdoors around mid June (Jun 12–Jul 3) in Tacoma, based on its local frost dates. Confidence 82%.
How long is the growing season in Tacoma?
Tacoma has roughly 246 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 Tacoma's frost dates.
Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.