When to plant cauliflower in Anchorage
Cauliflower is cold-hardy, so every date keys off Anchorage's frost dates of Apr 30.
Step 1 · Sow
Start seeds indoors
Mar 19 – Apr 9
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 9 – May 30
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 8 – Aug 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Anchorage's 148-day season leaves this much room.
Cauliflower 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 will cauliflower be ready to harvest in Anchorage?
Expect to harvest from around early July (Jul 8–Aug 2) in Anchorage, based on its local frost dates. Confidence 76%.
When should I start cauliflower seeds indoors in Anchorage?
Start seeds indoors around mid March (Mar 19–Apr 9) in Anchorage, based on its local frost dates. Confidence 81%.
When can I transplant cauliflower outdoors in Anchorage?
Transplant outdoors around early May (May 9–May 30) in Anchorage, based on its local frost dates. Confidence 82%.
How long is the growing season in Anchorage?
Anchorage has roughly 148 frost-free days, which is enough time to grow cauliflower to maturity outdoors.
The rule of thumb
Sow cauliflower 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.