When to plant sweet potato in Strasbourg
Sweet potato is frost-tender, so every date keys off Strasbourg's last spring frost of Apr 25.
Step 1 · Plant
Transplant outdoors
May 16 – Jun 6
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 14 – Sep 13
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Strasbourg's 172-day season leaves this much room.
Sweet potato on Strasbourg'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 25
OCT 14
Common questions
When will sweet potato be ready to harvest in Strasbourg?
Expect to harvest from around mid August (Aug 14–Sep 13) in Strasbourg, based on its local frost dates. Confidence 63%.
When can I transplant sweet potato outdoors in Strasbourg?
Transplant outdoors around mid May (May 16–Jun 6) in Strasbourg, based on its local frost dates. Confidence 70%.
How long is the growing season in Strasbourg?
Strasbourg has roughly 172 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 Strasbourg's frost dates.
Confidence 70/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.