When to plant bush (snap) bean in Ottawa
Bush (snap) bean is frost-tender, so every date keys off Ottawa's last spring frost of May 6.
Step 1 · Sow
Direct sow outdoors
May 13 – Jun 3
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 2 – Jul 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Ottawa's 149-day season leaves this much room.
Bush (snap) bean on Ottawa'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 6
OCT 2
Common questions
When can I sow bush (snap) bean outdoors in Ottawa?
Direct-sow around mid May (May 13–Jun 3) in Ottawa, based on its local frost dates. Confidence 84%.
When will bush (snap) bean be ready to harvest in Ottawa?
Expect to harvest from around early July (Jul 2–Jul 12) in Ottawa, based on its local frost dates. Confidence 76%.
How long is the growing season in Ottawa?
Ottawa has roughly 149 frost-free days, which is enough time to grow bush (snap) bean to maturity outdoors.
The rule of thumb
Sow bush (snap) bean 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and Ottawa's frost dates.
Confidence 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.