When to plant peas in Glasgow
Peas is cold-hardy, so every date keys off Glasgow's frost dates of May 1.
Step 1 · Sow
Direct sow outdoors
Mar 27 – Apr 17
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 21 – Jun 5
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 28 – Aug 11
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 28 – Oct 13
Maturity window for the second sowing.
Window
Days to maturity
55 – 70 d
Glasgow's 183-day season leaves this much room.
Peas on Glasgow'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 1
OCT 27
Common questions
When can I sow peas outdoors in Glasgow?
Direct-sow around late March (Mar 27–Apr 17) in Glasgow, based on its local frost dates. Confidence 82%.
When will peas be ready to harvest in Glasgow?
Expect to harvest from around late May (May 21–Jun 5) in Glasgow, based on its local frost dates. Confidence 74%.
Can I plant peas in autumn in Glasgow?
Yes — Glasgow supports a second, autumn sowing of peas around late July (Jul 28–Aug 11), timed to mature before the first fall frost.
How long is the growing season in Glasgow?
Glasgow has roughly 183 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 Glasgow's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.