When to plant leek in Peoria
Leek is cold-hardy, so every date keys off Peoria's frost dates of Jan 27.
Step 1 · Sow
Start seeds indoors
Nov 18 – Dec 9
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Dec 28 – Jan 18
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Apr 7 – Apr 27
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
Peoria's 322-day season leaves this much room.
Leek on Peoria'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 27
DEC 15
Common questions
When will leek be ready to harvest in Peoria?
Expect to harvest from around early April (Apr 7–Apr 27) in Peoria, based on its local frost dates. Confidence 78%.
When should I start leek seeds indoors in Peoria?
Start seeds indoors around mid November (Nov 18–Dec 9) in Peoria, based on its local frost dates. Confidence 83%.
When can I transplant leek outdoors in Peoria?
Transplant outdoors around late December (Dec 28–Jan 18) in Peoria, based on its local frost dates. Confidence 84%.
How long is the growing season in Peoria?
Peoria has roughly 322 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 Peoria's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.