When to plant onion in Akron
Onion is cold-hardy, so every date keys off Akron's frost dates of Apr 30.
Step 1 · Sow
Start seeds indoors
Feb 19 – Mar 12
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 22 – May 13
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
90 – 110 d
Akron's 171-day season leaves this much room.
Onion on Akron'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
APR 30
OCT 19
Common questions
When will onion be ready to harvest in Akron?
Expect to harvest from around late July (Jul 21–Aug 10) in Akron, based on its local frost dates. Confidence 75%.
When should I start onion seeds indoors in Akron?
Start seeds indoors around mid February (Feb 19–Mar 12) in Akron, based on its local frost dates. Confidence 79%.
When can I transplant onion outdoors in Akron?
Transplant outdoors around late April (Apr 22–May 13) in Akron, based on its local frost dates. Confidence 81%.
How long is the growing season in Akron?
Akron has roughly 171 frost-free days, which is enough time to grow onion to maturity outdoors.
The rule of thumb
Sow onion 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 Akron's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.