When to plant spinach in Bristol
Spinach is cold-hardy, so every date keys off Bristol's frost dates of Apr 12.
Step 1 · Sow
Direct sow outdoors
Mar 1 – Mar 22
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 10 – Apr 20
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 1 – Sep 15
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 18 – Oct 28
Maturity window for the second sowing.
Window
Days to maturity
40 – 50 d
Bristol's 204-day season leaves this much room.
Spinach on Bristol'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 12
NOV 11
Common questions
When can I sow spinach outdoors in Bristol?
Direct-sow around early March (Mar 1–Mar 22) in Bristol, based on its local frost dates. Confidence 83%.
When will spinach be ready to harvest in Bristol?
Expect to harvest from around early April (Apr 10–Apr 20) in Bristol, based on its local frost dates. Confidence 75%.
Can I plant spinach in autumn in Bristol?
Yes — Bristol supports a second, autumn sowing of spinach around early September (Sep 1–Sep 15), timed to mature before the first fall frost.
How long is the growing season in Bristol?
Bristol has roughly 204 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 Bristol's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.