When to plant leek in Adelaide
Leek is cold-hardy, so every date keys off Adelaide's frost dates.
Step 1 · Sow
Direct sow outdoors
Jul 9 – Jul 30
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Oct 17 – Nov 6
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
From sowing to first pick.
Common questions
When can I sow leek outdoors in Adelaide?
Direct-sow around early July (Jul 9–Jul 30) in Adelaide, based on its local frost dates. Confidence 82%.
When will leek be ready to harvest in Adelaide?
Expect to harvest from around mid October (Oct 17–Nov 6) in Adelaide, based on its local frost dates. Confidence 76%.
How long is the growing season in Adelaide?
Adelaide has roughly 365 frost-free days, which is enough time to grow leek to maturity outdoors.
The rule of thumb
Sow leek 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 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.