When to plant onion in Albuquerque
Onion is cold-hardy, so every date keys off Albuquerque's frost dates of Apr 9.
Step 1 · Sow
Start seeds indoors
Jan 29 – Feb 19
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 24 – Apr 14
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 22 – Jul 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 110 d
Albuquerque's 207-day season leaves this much room.
Onion on Albuquerque'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 9
NOV 3
Common questions
When will onion be ready to harvest in Albuquerque?
Expect to harvest from around late June (Jun 22–Jul 12) in Albuquerque, based on its local frost dates. Confidence 78%.
When should I start onion seeds indoors in Albuquerque?
Start seeds indoors around late January (Jan 29–Feb 19) in Albuquerque, based on its local frost dates. Confidence 83%.
When can I transplant onion outdoors in Albuquerque?
Transplant outdoors around late March (Mar 24–Apr 14) in Albuquerque, based on its local frost dates. Confidence 84%.
How long is the growing season in Albuquerque?
Albuquerque has roughly 207 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 Albuquerque's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.