When to plant lettuce in Fremont

Lettuce is cold-hardy, so every date keys off Fremont's frost dates of Feb 25.
Step 1 · Sow
Start seeds indoors
Jan 28 – Feb 18
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 4 – Feb 25
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Mar 21 – Apr 5
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 26 – Sep 9
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 17 – Nov 1
Maturity window for the second sowing.
Window
Days to maturity
45 – 60 d
Fremont's 277-day season leaves this much room.
Lettuce 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
FEB 25
NOV 29

Common questions

When can I sow lettuce outdoors in Fremont?

Direct-sow around late January (Jan 28–Feb 18) in Fremont, based on its local frost dates. Confidence 80%.

When will lettuce be ready to harvest in Fremont?

Expect to harvest from around late March (Mar 21–Apr 5) in Fremont, based on its local frost dates. Confidence 72%.

When should I start lettuce seeds indoors in Fremont?

Start seeds indoors around late January (Jan 28–Feb 18) in Fremont, based on its local frost dates. Confidence 76%.

When can I transplant lettuce outdoors in Fremont?

Transplant outdoors around early February (Feb 4–Feb 25) in Fremont, based on its local frost dates. Confidence 80%.

Can I plant lettuce in autumn in Fremont?

Yes — Fremont supports a second, autumn sowing of lettuce around late August (Aug 26–Sep 9), timed to mature before the first fall frost.

How long is the growing season in Fremont?

Fremont has roughly 277 frost-free days, which is enough time to grow lettuce to maturity outdoors.

The rule of thumb

Sow lettuce 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.