When to plant sweet potato in Vancouver
Sweet potato is frost-tender, so every date keys off Vancouver's last spring frost of Mar 28.
Step 1 · Plant
Transplant outdoors
Apr 18 – May 9
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Jul 17 – Aug 16
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Vancouver's 222-day season leaves this much room.
Sweet potato on Vancouver'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 28
NOV 5
Common questions
When will sweet potato be ready to harvest in Vancouver?
Expect to harvest from around mid July (Jul 17–Aug 16) in Vancouver, based on its local frost dates. Confidence 77%.
When can I transplant sweet potato outdoors in Vancouver?
Transplant outdoors around mid April (Apr 18–May 9) in Vancouver, based on its local frost dates. Confidence 86%.
How long is the growing season in Vancouver?
Vancouver has roughly 222 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 Vancouver's frost dates.
Confidence 86/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.