When to plant garlic in Riverside
Garlic is cold-hardy, so every date keys off Riverside's frost dates of Feb 16.
Step 1 · Sow
Direct sow outdoors
Nov 8 – Nov 29
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 6 – Jul 6
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
Riverside's 293-day season leaves this much room.
Garlic on Riverside'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
FEB 16
DEC 6
Common questions
When can I sow garlic outdoors in Riverside?
Direct-sow around early November (Nov 8–Nov 29) in Riverside, based on its local frost dates. Confidence 78%.
When will garlic be ready to harvest in Riverside?
Expect to harvest from around early July (Jul 6–Jul 6) in Riverside, based on its local frost dates. Confidence 70%.
How long is the growing season in Riverside?
Riverside has roughly 293 frost-free days, which is enough 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 Riverside's frost dates.
Confidence 78/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.