When to plant leek in Fremont
Leek is cold-hardy, so every date keys off Fremont's frost dates of Feb 25.
Step 1 · Sow
Start seeds indoors
Dec 17 – Jan 7
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 11 – Mar 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 22 – Jun 11
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
Fremont's 277-day season leaves this much room.
Leek on Fremont'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 25
NOV 29
Common questions
When will leek be ready to harvest in Fremont?
Expect to harvest from around late May (May 22–Jun 11) in Fremont, based on its local frost dates. Confidence 72%.
When should I start leek seeds indoors in Fremont?
Start seeds indoors around mid December (Dec 17–Jan 7) in Fremont, based on its local frost dates. Confidence 76%.
When can I transplant leek outdoors in Fremont?
Transplant outdoors around mid February (Feb 11–Mar 4) in Fremont, based on its local frost dates. Confidence 80%.
How long is the growing season in Fremont?
Fremont has roughly 277 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 Fremont's frost dates.
Confidence 80/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.