When to plant radish in Canberra
Radish is cold-hardy, so every date keys off Canberra's frost dates of Oct 20.
Step 1 · Sow
Direct sow outdoors
Sep 22 – Oct 13
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Oct 17 – Oct 22
Picking runs until conditions turn against the crop.
Window
Days to maturity
25 – 30 d
Canberra's 182-day season leaves this much room.
Radish on Canberra'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
OCT 20
APR 20
Common questions
When can I sow radish outdoors in Canberra?
Direct-sow around late September (Sep 22–Oct 13) in Canberra, based on its local frost dates. Confidence 82%.
When will radish be ready to harvest in Canberra?
Expect to harvest from around mid October (Oct 17–Oct 22) in Canberra, based on its local frost dates. Confidence 74%.
How long is the growing season in Canberra?
Canberra has roughly 182 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 Canberra's frost dates.
Confidence 82/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.