When to plant radish in Jacksonville
Radish is cold-hardy, so every date keys off Jacksonville's frost dates of Feb 9.
Step 1 · Sow
Direct sow outdoors
Jan 20 – Feb 10
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Feb 14 – Feb 19
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Oct 27 – Nov 10
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Nov 28 – Dec 3
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Jacksonville's 311-day season leaves this much room.
Radish on Jacksonville'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
FEB 9
DEC 17
Common questions
When can I sow radish outdoors in Jacksonville?
Direct-sow around mid January (Jan 20–Feb 10) in Jacksonville, based on its local frost dates. Confidence 81%.
When will radish be ready to harvest in Jacksonville?
Expect to harvest from around mid February (Feb 14–Feb 19) in Jacksonville, based on its local frost dates. Confidence 76%.
Can I plant radish in autumn in Jacksonville?
Yes — Jacksonville supports a second, autumn sowing of radish around late October (Oct 27–Nov 10), timed to mature before the first fall frost.
How long is the growing season in Jacksonville?
Jacksonville has roughly 311 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 Jacksonville's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.