When to plant radish in Lyon
Radish is cold-hardy, so every date keys off Lyon's frost dates of Apr 15.
Step 1 · Sow
Direct sow outdoors
Mar 18 – Apr 8
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 12 – Apr 17
Picking runs until conditions turn against the crop.
Window
Days to maturity
25 – 30 d
Lyon's 193-day season leaves this much room.
Radish on Lyon'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 15
OCT 25
Common questions
When can I sow radish outdoors in Lyon?
Direct-sow around mid March (Mar 18–Apr 8) in Lyon, based on its local frost dates. Confidence 86%.
When will radish be ready to harvest in Lyon?
Expect to harvest from around mid April (Apr 12–Apr 17) in Lyon, based on its local frost dates. Confidence 77%.
How long is the growing season in Lyon?
Lyon has roughly 193 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 Lyon's frost dates.
Confidence 86/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.