When to plant leek in Jackson
Leek is cold-hardy, so every date keys off Jackson's frost dates of Mar 3.
Step 1 · Sow
Start seeds indoors
Dec 23 – Jan 13
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 17 – Mar 10
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 28 – Jun 17
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
Jackson's 267-day season leaves this much room.
Leek on Jackson'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 3
NOV 20
Common questions
When will leek be ready to harvest in Jackson?
Expect to harvest from around late May (May 28–Jun 17) in Jackson, based on its local frost dates. Confidence 74%.
When should I start leek seeds indoors in Jackson?
Start seeds indoors around late December (Dec 23–Jan 13) in Jackson, based on its local frost dates. Confidence 78%.
When can I transplant leek outdoors in Jackson?
Transplant outdoors around mid February (Feb 17–Mar 10) in Jackson, based on its local frost dates. Confidence 82%.
How long is the growing season in Jackson?
Jackson has roughly 267 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 Jackson's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.