When to plant leek in Stockton
Leek is cold-hardy, so every date keys off Stockton's frost dates of Feb 12.
Step 1 · Sow
Start seeds indoors
Dec 4 – Dec 25
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Dec 26 – Jan 16
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Apr 5 – Apr 25
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
Stockton's 284-day season leaves this much room.
Leek on Stockton'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
FEB 12
NOV 27
Common questions
When will leek be ready to harvest in Stockton?
Expect to harvest from around early April (Apr 5–Apr 25) in Stockton, based on its local frost dates. Confidence 79%.
When should I start leek seeds indoors in Stockton?
Start seeds indoors around early December (Dec 4–Dec 25) in Stockton, based on its local frost dates. Confidence 84%.
When can I transplant leek outdoors in Stockton?
Transplant outdoors around late December (Dec 26–Jan 16) in Stockton, based on its local frost dates. Confidence 85%.
How long is the growing season in Stockton?
Stockton has roughly 284 frost-free days, which is enough time to grow leek to maturity outdoors.
The rule of thumb
Sow leek as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Stockton's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.