When to plant beet in Detroit
Beet is cold-hardy, so every date keys off Detroit's frost dates of Apr 15.
Step 1 · Sow
Direct sow outdoors
Apr 11 – May 2
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 31 – Jun 20
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 20 – Aug 3
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 15 – Oct 5
Maturity window for the second sowing.
Window
Days to maturity
50 – 70 d
Detroit's 194-day season leaves this much room.
Beet on Detroit'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 15
OCT 31
Common questions
When can I sow beet outdoors in Detroit?
Direct-sow around mid April (Apr 11–May 2) in Detroit, based on its local frost dates. Confidence 85%.
When will beet be ready to harvest in Detroit?
Expect to harvest from around late May (May 31–Jun 20) in Detroit, based on its local frost dates. Confidence 79%.
Can I plant beet in autumn in Detroit?
Yes — Detroit supports a second, autumn sowing of beet around mid July (Jul 20–Aug 3), timed to mature before the first fall frost.
How long is the growing season in Detroit?
Detroit has roughly 194 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 Detroit's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.