When to plant sweet potato in Newport News
Sweet potato is frost-tender, so every date keys off Newport News's last spring frost of Mar 13.
Step 1 · Plant
Transplant outdoors
May 5 – May 26
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 3 – Sep 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Newport News's 262-day season leaves this much room.
Sweet potato on Newport News'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
MAR 13
NOV 24
Common questions
When will sweet potato be ready to harvest in Newport News?
Expect to harvest from around early August (Aug 3–Sep 2) in Newport News, based on its local frost dates. Confidence 77%.
When can I transplant sweet potato outdoors in Newport News?
Transplant outdoors around early May (May 5–May 26) in Newport News, based on its local frost dates. Confidence 83%.
How long is the growing season in Newport News?
Newport News has roughly 262 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 Newport News's frost dates.
Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.