When to plant radish in Fresno
Radish is cold-hardy, so every date keys off Fresno's frost dates of Jan 31.
Step 1 · Sow
Direct sow outdoors
Dec 25 – Jan 15
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jan 19 – Jan 24
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Oct 15 – Oct 29
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Nov 16 – Nov 21
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Fresno's 313-day season leaves this much room.
Radish on Fresno'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
JAN 31
DEC 5
Common questions
When can I sow radish outdoors in Fresno?
Direct-sow around late December (Dec 25–Jan 15) in Fresno, based on its local frost dates. Confidence 84%.
When will radish be ready to harvest in Fresno?
Expect to harvest from around mid January (Jan 19–Jan 24) in Fresno, based on its local frost dates. Confidence 78%.
Can I plant radish in autumn in Fresno?
Yes — Fresno supports a second, autumn sowing of radish around mid October (Oct 15–Oct 29), timed to mature before the first fall frost.
How long is the growing season in Fresno?
Fresno has roughly 313 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 Fresno's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.