When to plant spinach in Cleveland
Spinach is cold-hardy, so every date keys off Cleveland's frost dates of Apr 5.
Step 1 · Sow
Direct sow outdoors
Mar 19 – Apr 9
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 28 – May 8
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 6 – Sep 20
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 23 – Nov 2
Maturity window for the second sowing.
Window
Days to maturity
40 – 50 d
Cleveland's 227-day season leaves this much room.
Spinach on Cleveland'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 5
NOV 16
Common questions
When can I sow spinach outdoors in Cleveland?
Direct-sow around mid March (Mar 19–Apr 9) in Cleveland, based on its local frost dates. Confidence 81%.
When will spinach be ready to harvest in Cleveland?
Expect to harvest from around late April (Apr 28–May 8) in Cleveland, based on its local frost dates. Confidence 76%.
Can I plant spinach in autumn in Cleveland?
Yes — Cleveland supports a second, autumn sowing of spinach around early September (Sep 6–Sep 20), timed to mature before the first fall frost.
How long is the growing season in Cleveland?
Cleveland has roughly 227 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 Cleveland's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.