When to plant tomato in Lyon
Tomato is frost-tender, so every date keys off Lyon's last spring frost of Mar 26.
Step 1 · Sow
Start seeds indoors
Mar 3 – Mar 24
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 21 – Jun 11
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 20 – Aug 14
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Lyon's 232-day season leaves this much room.
Tomato on Lyon'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 26
NOV 16
Common questions
When will tomato be ready to harvest in Lyon?
Expect to harvest from around mid July (Jul 20–Aug 14) in Lyon, based on its local frost dates. Confidence 78%.
When should I start tomato seeds indoors in Lyon?
Start seeds indoors around early March (Mar 3–Mar 24) in Lyon, based on its local frost dates. Confidence 83%.
When can I transplant tomato outdoors in Lyon?
Transplant outdoors around late May (May 21–Jun 11) in Lyon, based on its local frost dates. Confidence 84%.
How long is the growing season in Lyon?
Lyon has roughly 232 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 Lyon's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.