Growing in Detroit
- USDA zone (2023)
- 6a-6b
- Median last frost
- April 25
- Median first frost
- October 20
- Growing season
- ~178 days
Frost dates are medians from NOAA climate normals: in half of years, frost comes later. The windows below are computed from each crop's planting rules against this city's dates, treat them as the center of the target, not the edges.
Tomato in Detroit
| Step | Window | Notes |
|---|---|---|
| Start seed indoors | February 28 to March 14 | |
| Transplant out | April 25 to May 16 | soil ≥ 60°F |
→ Full tomato calendar & suitable varieties for Detroit
Pepper in Detroit
| Step | Window | Notes |
|---|---|---|
| Start seed indoors | February 14 to February 28 | |
| Transplant out | May 2 to May 23 | soil ≥ 65°F |
→ Full pepper calendar & suitable varieties for Detroit
Other crops with rules for this climate
Data sources
Evidence: 2 sources, all independent references.
- USDA Plant Hardiness Zone Map (2023) · USDA Agricultural Research Service / Oregon State PRISM (2023), University or Government
- U.S. Climate Normals (1991-2020) · NOAA National Centers for Environmental Information (2021), University or Government