When to plant peas in Bismarck
Peas is cold-hardy, so every date keys off Bismarck's frost dates of May 15.
Step 1 · Sow
Direct sow outdoors
Apr 21 – May 12
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 15 – Jun 30
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jun 26 – Jul 10
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Aug 27 – Sep 11
Maturity window for the second sowing.
Window
Days to maturity
55 – 70 d
Bismarck's 132-day season leaves this much room.
Peas on Bismarck'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
SEP 25
Common questions
When can I sow peas outdoors in Bismarck?
Direct-sow around late April (Apr 21–May 12) in Bismarck, based on its local frost dates. Confidence 86%.
When will peas be ready to harvest in Bismarck?
Expect to harvest from around mid June (Jun 15–Jun 30) in Bismarck, based on its local frost dates. Confidence 80%.
Can I plant peas in autumn in Bismarck?
Yes — Bismarck supports a second, autumn sowing of peas around late June (Jun 26–Jul 10), timed to mature before the first fall frost.
How long is the growing season in Bismarck?
Bismarck has roughly 132 frost-free days, which is enough time to grow peas to maturity outdoors.
The rule of thumb
Sow peas 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 Bismarck's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.