When to plant sweet potato in Frankfurt
Sweet potato is frost-tender, so every date keys off Frankfurt's last spring frost of Apr 24.
Step 1 · Plant
Transplant outdoors
May 15 – Jun 5
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 13 – Sep 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Frankfurt's 175-day season leaves this much room.
Sweet potato on Frankfurt'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 24
OCT 16
Common questions
When will sweet potato be ready to harvest in Frankfurt?
Expect to harvest from around mid August (Aug 13–Sep 12) in Frankfurt, based on its local frost dates. Confidence 65%.
When can I transplant sweet potato outdoors in Frankfurt?
Transplant outdoors around mid May (May 15–Jun 5) in Frankfurt, based on its local frost dates. Confidence 72%.
How long is the growing season in Frankfurt?
Frankfurt has roughly 175 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 Frankfurt's frost dates.
Confidence 72/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.