Home › Crops › Radishes › Zone 9b
When to plant radishes in Zone 9b
In Zone 9b, direct-sow around January 5 – January 19. For a fall crop, sow around October 18 – November 1.
Your radishes timeline — Zone 9b
| Direct-sow | January 5 – January 19 |
|---|---|
| Sow for fall | October 18 – November 1 |
| Zone 9b last frost | ~02/02 |
| Zone 9b first frost | ~12/08 |
Direct-sow 2–4 weeks before the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”
Dates computed from Zone 9b's median NOAA frost normals and the cited rule. Your town may differ by a week or two — check your exact ZIP.
What you'll need
Affiliate links — as an Amazon Associate we may earn from qualifying purchases, at no extra cost to you.
Last verified 2026-07-16. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; UGA Extension (days to maturity).