Home › Crops › Collards › Zone 4b
When to plant collards in Zone 4b
In Zone 4b, start indoors around March 1 – March 15 and transplant around April 5 – April 19. For a fall crop, sow around June 16 – June 30.
Your collards timeline — Zone 4b
| Start indoors | March 1 – March 15 |
|---|---|
| Transplant | April 5 – April 19 |
| Sow for fall | June 16 – June 30 |
| Zone 4b last frost | ~05/10 |
| Zone 4b first frost | ~09/30 |
Start indoors; set out 4 weeks before the last frost. [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart
Dates computed from Zone 4b'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 2026-07-17. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: Johnny's Selected Seeds — Seed-Starting Date Calculator chart; University of Georgia Extension — Vegetable Planting Chart (Circular C963) (days to maturity).