When to plant sweet potato in Kyoto
Sweet potato is frost-tender, so every date keys off Kyoto's last spring frost of Apr 10.
Step 1 · Plant
Transplant outdoors
Jun 4 – Jun 25
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Sep 2 – Oct 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Kyoto's 230-day season leaves this much room.
Sweet potato on Kyoto'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 25
Common questions
When will sweet potato be ready to harvest in Kyoto?
Expect to harvest from around early September (Sep 2–Oct 2) in Kyoto, based on its local frost dates. Confidence 40%.
When can I transplant sweet potato outdoors in Kyoto?
Transplant outdoors around early June (Jun 4–Jun 25) in Kyoto, based on its local frost dates. Confidence 44%.
How long is the growing season in Kyoto?
Kyoto has roughly 230 frost-free days, which is enough time to grow sweet potato to maturity outdoors.
The rule of thumb
Sow sweet potato 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 Kyoto's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.