When to plant radish in Honolulu
Honolulu is frost-free, so radish's dates key off the local wet and dry seasons and monthly temperatures — not a frost date.
Step 1 · Sow
Direct sow outdoors
Nov 1 – Jun 2
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Nov 26 – Jul 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
25 – 30 d
From sowing to first pick.
Common questions
When can I sow radish outdoors in Honolulu?
Direct-sow around early November (Nov 1–Jun 2) in Honolulu, based on its local frost dates. Confidence 67%.
When will radish be ready to harvest in Honolulu?
Expect to harvest from around late November (Nov 26–Jul 2) 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 radish 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.