When to plant spinach in Frankfurt
Spinach is cold-hardy, so every date keys off Frankfurt's frost dates of Mar 30.
Step 1 · Sow
Direct sow outdoors
Feb 16 – Mar 9
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Mar 28 – Apr 7
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 5 – Sep 19
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 22 – Nov 1
Maturity window for the second sowing.
Window
Days to maturity
40 – 50 d
Frankfurt's 230-day season leaves this much room.
Spinach on Frankfurt'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 30
NOV 15
Common questions
When can I sow spinach outdoors in Frankfurt?
Direct-sow around mid February (Feb 16–Mar 9) in Frankfurt, based on its local frost dates. Confidence 89%.
When will spinach be ready to harvest in Frankfurt?
Expect to harvest from around late March (Mar 28–Apr 7) in Frankfurt, based on its local frost dates. Confidence 80%.
Can I plant spinach in autumn in Frankfurt?
Yes — Frankfurt supports a second, autumn sowing of spinach around early September (Sep 5–Sep 19), timed to mature before the first fall frost.
How long is the growing season in Frankfurt?
Frankfurt has roughly 230 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 Frankfurt's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.