When to plant carrot in Missoula
Carrot is cold-hardy, so every date keys off Missoula's frost dates of May 15.
Step 1 · Sow
Direct sow outdoors
Apr 24 – May 15
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 23 – Jul 13
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 80 d
Missoula's 138-day season leaves this much room.
Carrot on Missoula'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
MAY 15
OCT 4
Common questions
When can I sow carrot outdoors in Missoula?
Direct-sow around late April (Apr 24–May 15) in Missoula, based on its local frost dates. Confidence 83%.
When will carrot be ready to harvest in Missoula?
Expect to harvest from around late June (Jun 23–Jul 13) in Missoula, based on its local frost dates. Confidence 75%.
How long is the growing season in Missoula?
Missoula has roughly 138 frost-free days, which is enough time to grow carrot to maturity outdoors.
The rule of thumb
Sow carrot 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 Missoula's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.