When to plant spinach in Adelaide
Spinach is cold-hardy, so every date keys off Adelaide's frost dates of Aug 15.
Step 1 · Sow
Direct sow outdoors
Jul 4 – Jul 25
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Aug 13 – Aug 23
Picking runs until conditions turn against the crop.
Window
Days to maturity
40 – 50 d
Adelaide's 304-day season leaves this much room.
Spinach on Adelaide'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
AUG 15
JUN 15
Common questions
When can I sow spinach outdoors in Adelaide?
Direct-sow around early July (Jul 4–Jul 25) in Adelaide, based on its local frost dates. Confidence 80%.
When will spinach be ready to harvest in Adelaide?
Expect to harvest from around mid August (Aug 13–Aug 23) in Adelaide, based on its local frost dates. Confidence 72%.
How long is the growing season in Adelaide?
Adelaide has roughly 304 frost-free days, which is enough time to grow spinach to maturity outdoors.
The rule of thumb
Sow spinach 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 Adelaide's frost dates.
Confidence 80/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.