When to plant radish in Wellington
Radish is cold-hardy, so every date keys off Wellington's frost dates of Sep 19.
Step 1 · Sow
Direct sow outdoors
Aug 22 – Sep 12
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Sep 16 – Sep 21
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Apr 12 – Apr 26
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
May 14 – May 19
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Wellington's 256-day season leaves this much room.
Radish on Wellington'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
SEP 19
JUN 2
Common questions
When can I sow radish outdoors in Wellington?
Direct-sow around late August (Aug 22–Sep 12) in Wellington, based on its local frost dates. Confidence 50%.
When will radish be ready to harvest in Wellington?
Expect to harvest from around mid September (Sep 16–Sep 21) in Wellington, based on its local frost dates. Confidence 45%.
Can I plant radish in autumn in Wellington?
Yes — Wellington supports a second, autumn sowing of radish around mid April (Apr 12–Apr 26), timed to mature before the first fall frost.
How long is the growing season in Wellington?
Wellington has roughly 256 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 Wellington's frost dates.
Confidence 50/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.