When to plant bush (snap) bean in Denver
Bush (snap) bean is frost-tender, so every date keys off Denver's last spring frost of May 4.
Step 1 · Sow
Direct sow outdoors
Jun 1 – Jun 22
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 21 – Jul 31
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Denver's 157-day season leaves this much room.
Bush (snap) bean on Denver'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 4
OCT 10
Common questions
When can I sow bush (snap) bean outdoors in Denver?
Direct-sow around early June (Jun 1–Jun 22) in Denver, based on its local frost dates. Confidence 82%.
When will bush (snap) bean be ready to harvest in Denver?
Expect to harvest from around late July (Jul 21–Jul 31) in Denver, based on its local frost dates. Confidence 76%.
How long is the growing season in Denver?
Denver has roughly 157 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 Denver's frost dates.
Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.