When to plant pepper (sweet & chili) in Osaka
Pepper (sweet & chili) is frost-tender, so every date keys off Osaka's last spring frost of Apr 10.
Step 1 · Sow
Start seeds indoors
Feb 25 – Mar 18
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 3 – Jun 24
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 7 – Sep 1
Picking runs until conditions turn against the crop.
Window
Days to maturity
65 – 90 d
Osaka's 228-day season leaves this much room.
Pepper (sweet & chili) on Osaka'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 10
NOV 22
Common questions
When will pepper (sweet & chili) be ready to harvest in Osaka?
Expect to harvest from around early August (Aug 7–Sep 1) in Osaka, based on its local frost dates. Confidence 40%.
When should I start pepper (sweet & chili) seeds indoors in Osaka?
Start seeds indoors around late February (Feb 25–Mar 18) in Osaka, based on its local frost dates. Confidence 43%.
When can I transplant pepper (sweet & chili) outdoors in Osaka?
Transplant outdoors around early June (Jun 3–Jun 24) in Osaka, based on its local frost dates. Confidence 44%.
How long is the growing season in Osaka?
Osaka has roughly 228 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 Osaka's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.