When to plant sweet potato in Columbus
Sweet potato is frost-tender, so every date keys off Columbus's last spring frost of Apr 16.
Step 1 · Plant
Transplant outdoors
Jun 2 – Jun 23
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 31 – Sep 30
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Columbus's 188-day season leaves this much room.
Sweet potato on Columbus'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 16
OCT 25
Common questions
When will sweet potato be ready to harvest in Columbus?
Expect to harvest from around late August (Aug 31–Sep 30) in Columbus, based on its local frost dates. Confidence 80%.
When can I transplant sweet potato outdoors in Columbus?
Transplant outdoors around early June (Jun 2–Jun 23) in Columbus, based on its local frost dates. Confidence 86%.
How long is the growing season in Columbus?
Columbus has roughly 188 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 Columbus's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.