When to plant pepper (sweet & chili) in Tokyo
Pepper (sweet & chili) is frost-tender, so every date keys off Tokyo's last spring frost of Mar 28.
Step 1 · Sow
Start seeds indoors
Feb 12 – Mar 5
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 26 – Jun 16
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 30 – Aug 24
Picking runs until conditions turn against the crop.
Window
Days to maturity
65 – 90 d
Tokyo's 258-day season leaves this much room.
Pepper (sweet & chili) on Tokyo'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
MAR 28
DEC 11
Common questions
When will pepper (sweet & chili) be ready to harvest in Tokyo?
Expect to harvest from around late July (Jul 30–Aug 24) in Tokyo, based on its local frost dates. Confidence 40%.
When should I start pepper (sweet & chili) seeds indoors in Tokyo?
Start seeds indoors around mid February (Feb 12–Mar 5) in Tokyo, based on its local frost dates. Confidence 43%.
When can I transplant pepper (sweet & chili) outdoors in Tokyo?
Transplant outdoors around late May (May 26–Jun 16) in Tokyo, based on its local frost dates. Confidence 44%.
How long is the growing season in Tokyo?
Tokyo has roughly 258 frost-free days, which is enough time to grow pepper (sweet & chili) to maturity outdoors.
The rule of thumb
Sow pepper (sweet & chili) 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 Tokyo's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.