When to plant radish in Bristol
Radish is cold-hardy, so every date keys off Bristol's frost dates of Apr 12.
Step 1 · Sow
Direct sow outdoors
Mar 15 – Apr 5
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 9 – Apr 14
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 21 – Oct 5
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 23 – Oct 28
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Bristol's 204-day season leaves this much room.
Radish 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 radish outdoors in Bristol?
Direct-sow around mid March (Mar 15–Apr 5) in Bristol, based on its local frost dates. Confidence 83%.
When will radish be ready to harvest in Bristol?
Expect to harvest from around early April (Apr 9–Apr 14) in Bristol, based on its local frost dates. Confidence 75%.
Can I plant radish in autumn in Bristol?
Yes — Bristol supports a second, autumn sowing of radish around late September (Sep 21–Oct 5), 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 radish to maturity outdoors.
The rule of thumb
Sow radish 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.