When to plant in Dearborn Heights, MI
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Dearborn Heights, Michigan — is derived from the closest NOAA station with complete climate normals.
Zone 6b means Dearborn Heights sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
DEARBORN · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Dearborn Heights’s own odds, recorded at DEARBORN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 27 | May 12 | Apr 27 | Sep 24 | Oct 5 | Oct 18 |
| 32°F | May 18 | May 1 | Apr 17 | Oct 1 | Oct 15 | Oct 28 |
| 28°F | May 7 | Apr 20 | Apr 5 | Oct 13 | Oct 28 | Nov 12 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Dearborn Heights, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Dearborn Heights planting FAQ
When is the last spring frost in Dearborn Heights, MI?
Plan for the last spring frost in Dearborn Heights around May 1 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Dearborn Heights, MI?
The first fall frost in Dearborn Heights typically arrives around October 15 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Dearborn Heights in?
Dearborn Heights is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Dearborn Heights?
There are roughly 167 frost-free days in Dearborn Heights (a moderate growing season), running from the average last frost around May 1 to the first fall frost near October 15.
When should I plant tomatoes in Dearborn Heights?
In Dearborn Heights, start tomato seeds indoors around March 6–March 20, then transplant seedlings outdoors around May 8 once the danger of frost has passed.
Never miss a window in Dearborn Heights
An email when it’s time to start seeds, transplant, and sow — timed to Dearborn Heights’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Garden City · 4 km
- Inkster · 5 km
- Dearborn · 7 km
- Westland · 8 km
- Livonia · 10 km
- Wayne · 10 km
- Allen Park · 11 km
- Melvindale · 11 km
Frost dates recorded at DEARBORN, 5 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Dearborn Heights, MI — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00202015. Retrieved from https://blissgarden.com/michigan/dearborn-heights.