When to plant beet in Duluth
Beet is cold-hardy, so every date keys off Duluth's frost dates of May 10.
Step 1 · Sow
Direct sow outdoors
May 13 – Jun 3
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 2 – Jul 22
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jun 25 – Jul 9
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Aug 21 – Sep 10
Maturity window for the second sowing.
Window
Days to maturity
50 – 70 d
Duluth's 150-day season leaves this much room.
Beet on Duluth'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 10
OCT 7
Common questions
When can I sow beet outdoors in Duluth?
Direct-sow around mid May (May 13–Jun 3) in Duluth, based on its local frost dates. Confidence 84%.
When will beet be ready to harvest in Duluth?
Expect to harvest from around early July (Jul 2–Jul 22) in Duluth, based on its local frost dates. Confidence 78%.
Can I plant beet in autumn in Duluth?
Yes — Duluth supports a second, autumn sowing of beet around late June (Jun 25–Jul 9), timed to mature before the first fall frost.
How long is the growing season in Duluth?
Duluth has roughly 150 frost-free days, which is enough time to grow beet to maturity outdoors.
The rule of thumb
Sow beet 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 Duluth's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.