When to plant sweet potato in Houston
Sweet potato is frost-tender, so every date keys off Houston's last spring frost of Jan 26.
Step 1 · Plant
Transplant outdoors
Mar 26 – Apr 16
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Jun 24 – Jul 24
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Houston's 317-day season leaves this much room.
Sweet potato on Houston'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
JAN 26
DEC 9
Common questions
When will sweet potato be ready to harvest in Houston?
Expect to harvest from around late June (Jun 24–Jul 24) in Houston, based on its local frost dates. Confidence 76%.
When can I transplant sweet potato outdoors in Houston?
Transplant outdoors around late March (Mar 26–Apr 16) in Houston, based on its local frost dates. Confidence 84%.
How long is the growing season in Houston?
Houston has roughly 317 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 Houston's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.