When to plant garlic in Anchorage
Garlic is cold-hardy, so every date keys off Anchorage's frost dates of Apr 30.
Step 1 · Sow
Direct sow outdoors
Aug 29 – Sep 19
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 26 – Apr 26
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
Anchorage's 148-day season leaves this much room.
Garlic 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 garlic outdoors in Anchorage?
Direct-sow around late August (Aug 29–Sep 19) in Anchorage, based on its local frost dates. Confidence 85%.
When will garlic be ready to harvest in Anchorage?
Expect to harvest from around late April (Apr 26–Apr 26) in Anchorage, based on its local frost dates. Confidence 76%.
How long is the growing season in Anchorage?
Anchorage has roughly 148 frost-free days, which is marginal time to grow garlic to maturity outdoors.
The rule of thumb
Sow garlic 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.