When to plant radish in Anchorage
Radish is cold-hardy, so every date keys off Anchorage's frost dates of Apr 30.
Step 1 · Sow
Direct sow outdoors
Apr 30 – May 21
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 25 – May 30
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 6 – Aug 20
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 7 – Sep 12
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Anchorage's 148-day season leaves this much room.
Radish on Anchorage'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 30
SEP 26
Common questions
When can I sow radish outdoors in Anchorage?
Direct-sow around late April (Apr 30–May 21) in Anchorage, based on its local frost dates. Confidence 82%.
When will radish be ready to harvest in Anchorage?
Expect to harvest from around late May (May 25–May 30) in Anchorage, based on its local frost dates. Confidence 76%.
Can I plant radish in autumn in Anchorage?
Yes — Anchorage supports a second, autumn sowing of radish around early August (Aug 6–Aug 20), timed to mature before the first fall frost.
How long is the growing season in Anchorage?
Anchorage has roughly 148 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 Anchorage's frost dates.
Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.