When to plant spinach in Rochester
Spinach is cold-hardy, so every date keys off Rochester's frost dates of Apr 29.
Step 1 · Sow
Direct sow outdoors
Apr 5 – Apr 26
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 15 – May 25
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 14 – Aug 28
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 30 – Oct 10
Maturity window for the second sowing.
Window
Days to maturity
40 – 50 d
Rochester's 173-day season leaves this much room.
Spinach on Rochester'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
APR 29
OCT 24
Common questions
When can I sow spinach outdoors in Rochester?
Direct-sow around early April (Apr 5–Apr 26) in Rochester, based on its local frost dates. Confidence 86%.
When will spinach be ready to harvest in Rochester?
Expect to harvest from around mid May (May 15–May 25) in Rochester, based on its local frost dates. Confidence 80%.
Can I plant spinach in autumn in Rochester?
Yes — Rochester supports a second, autumn sowing of spinach around mid August (Aug 14–Aug 28), timed to mature before the first fall frost.
How long is the growing season in Rochester?
Rochester has roughly 173 frost-free days, which is enough time to grow spinach to maturity outdoors.
The rule of thumb
Sow spinach 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 Rochester's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.