When to plant sweet potato in Sydney
Sweet potato is frost-tender, so every date keys off Sydney's last spring frost of Jul 25.
Step 1 · Plant
Transplant outdoors
Aug 15 – Sep 5
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Nov 13 – Dec 13
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Sydney's 345-day season leaves this much room.
Sweet potato on Sydney'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
JUL 25
JUL 5
Common questions
When will sweet potato be ready to harvest in Sydney?
Expect to harvest from around mid November (Nov 13–Dec 13) in Sydney, based on its local frost dates. Confidence 76%.
When can I transplant sweet potato outdoors in Sydney?
Transplant outdoors around mid August (Aug 15–Sep 5) in Sydney, based on its local frost dates. Confidence 84%.
How long is the growing season in Sydney?
Sydney has roughly 345 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 Sydney's frost dates.
Confidence 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.