When to plant eggplant in Calgary
Eggplant is frost-tender, so every date keys off Calgary's last spring frost of May 22.
Step 1 · Sow
Start seeds indoors
Apr 15 – May 6
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Aug 2 – Aug 23
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Oct 11 – Oct 26
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 85 d
Calgary's 120-day season leaves this much room.
Eggplant 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 22
SEP 19
Common questions
When will eggplant be ready to harvest in Calgary?
Expect to harvest from around mid October (Oct 11–Oct 26) in Calgary, based on its local frost dates. Confidence 74%.
When should I start eggplant seeds indoors in Calgary?
Start seeds indoors around mid April (Apr 15–May 6) in Calgary, based on its local frost dates. Confidence 78%.
When can I transplant eggplant outdoors in Calgary?
Transplant outdoors around early August (Aug 2–Aug 23) in Calgary, based on its local frost dates. Confidence 80%.
How long is the growing season in Calgary?
Calgary has roughly 120 frost-free days, which is enough time to grow eggplant to maturity outdoors.
The rule of thumb
Sow eggplant 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 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.