When to plant garlic in Sioux Falls
Garlic is cold-hardy, so every date keys off Sioux Falls's frost dates of May 1.
Step 1 · Sow
Direct sow outdoors
Sep 4 – Sep 25
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 2 – May 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
Sioux Falls's 153-day season leaves this much room.
Garlic 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 garlic outdoors in Sioux Falls?
Direct-sow around early September (Sep 4–Sep 25) in Sioux Falls, based on its local frost dates. Confidence 89%.
When will garlic be ready to harvest in Sioux Falls?
Expect to harvest from around early May (May 2–May 2) in Sioux Falls, based on its local frost dates. Confidence 80%.
How long is the growing season in Sioux Falls?
Sioux Falls has roughly 153 frost-free days, which is marginal time to grow garlic to maturity outdoors.
The rule of thumb
Sow garlic as soon as the soil is workable — it tolerates cool weather and light frost. 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.