When to plant cilantro / coriander in Honolulu
Honolulu is frost-free, so cilantro / coriander's dates key off the local wet and dry seasons and monthly temperatures — not a frost date.
Step 1 · Sow
Direct sow outdoors
Oct 16 – May 17
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Nov 30 – Jul 26
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 70 d
From sowing to first pick.
Common questions
When can I sow cilantro / coriander outdoors in Honolulu?
Direct-sow around mid October (Oct 16–May 17) in Honolulu, based on its local frost dates. Confidence 67%.
When will cilantro / coriander be ready to harvest in Honolulu?
Expect to harvest from around late November (Nov 30–Jul 26) in Honolulu, based on its local frost dates. Confidence 60%.
The rule of thumb
Honolulu never frosts, so timing is about heat and the wet/dry seasons, not frost. Sow cilantro / coriander into its window above and keep it watered. Every date here is modelled from Honolulu's monthly climate normals, not frost dates.
Confidence 67/100 · Curated · based on NASA POWER (modeled) 1991–2020 · modelled from climate normals.