When to plant pepper (sweet & chili) in Calgary
Pepper (sweet & chili) is frost-tender, so every date keys off Calgary's last spring frost of May 23.
Step 1 · Sow
Start seeds indoors
Mar 28 – Apr 18
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 6 – Jun 27
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 10 – Sep 4
Picking runs until conditions turn against the crop.
Window
Days to maturity
65 – 90 d
Calgary's 115-day season leaves this much room.
Pepper (sweet & chili) on Calgary'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 23
SEP 15
Common questions
When will pepper (sweet & chili) be ready to harvest in Calgary?
Expect to harvest from around early August (Aug 10–Sep 4) in Calgary, based on its local frost dates. Confidence 74%.
When should I start pepper (sweet & chili) seeds indoors in Calgary?
Start seeds indoors around late March (Mar 28–Apr 18) in Calgary, based on its local frost dates. Confidence 78%.
When can I transplant pepper (sweet & chili) outdoors in Calgary?
Transplant outdoors around early June (Jun 6–Jun 27) in Calgary, based on its local frost dates. Confidence 82%.
How long is the growing season in Calgary?
Calgary has roughly 115 frost-free days, which is enough time to grow pepper (sweet & chili) to maturity outdoors.
The rule of thumb
Sow pepper (sweet & chili) 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 Calgary's frost dates.
Confidence 82/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.