When to plant cucumber in Sioux Falls
Cucumber is frost-tender, so every date keys off Sioux Falls's last spring frost of May 1.
Step 1 · Sow
Start seeds indoors
Apr 24 – May 15
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 1 – Jun 22
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 21 – Aug 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 70 d
Sioux Falls's 153-day season leaves this much room.
Cucumber on Sioux Falls'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 2
Common questions
When can I sow cucumber outdoors in Sioux Falls?
Direct-sow around early June (Jun 1–Jun 22) in Sioux Falls, based on its local frost dates. Confidence 86%.
When will cucumber be ready to harvest in Sioux Falls?
Expect to harvest from around late July (Jul 21–Aug 10) in Sioux Falls, based on its local frost dates. Confidence 80%.
When should I start cucumber seeds indoors in Sioux Falls?
Start seeds indoors around late April (Apr 24–May 15) in Sioux Falls, based on its local frost dates. Confidence 85%.
When can I transplant cucumber outdoors in Sioux Falls?
Transplant outdoors around early June (Jun 1–Jun 22) in Sioux Falls, based on its local frost dates. Confidence 86%.
How long is the growing season in Sioux Falls?
Sioux Falls has roughly 153 frost-free days, which is enough time to grow cucumber to maturity outdoors.
The rule of thumb
Sow cucumber 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 Sioux Falls's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.