When to plant in Grosse Pointe Park, MI
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Grosse Pointe Park, Michigan — is derived from the closest NOAA station with complete climate normals.
Zone 6b means Grosse Pointe Park sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
GROSSE POINTE FARMS · 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 Grosse Pointe Park’s own odds, recorded at GROSSE POINTE FARMS.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 8 | Apr 25 | Sep 26 | Oct 10 | Oct 24 |
| 32°F | May 13 | Apr 29 | Apr 15 | Oct 7 | Oct 22 | Nov 3 |
| 28°F | May 2 | Apr 16 | Apr 3 | Oct 19 | Nov 1 | Nov 14 |
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 Grosse Pointe Park, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Grosse Pointe Park planting FAQ
When is the last spring frost in Grosse Pointe Park, MI?
Plan for the last spring frost in Grosse Pointe Park around April 29 (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 Grosse Pointe Park, MI?
In Grosse Pointe Park, the first 32°F freeze of fall lands around October 22 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Grosse Pointe Park in?
Grosse Pointe Park 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 Grosse Pointe Park?
There are roughly 176 frost-free days in Grosse Pointe Park (a moderate growing season), running from the average last frost around April 29 to the first fall frost near October 22.
When should I plant tomatoes in Grosse Pointe Park?
In Grosse Pointe Park, start tomato seeds indoors around March 4–March 18, then transplant seedlings outdoors around May 6 once the danger of frost has passed.
Never miss a window in Grosse Pointe Park
An email when it’s time to start seeds, transplant, and sow — timed to Grosse Pointe Park’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Harper Woods · 7 km
- Grosse Pointe Woods · 8 km
- Eastpointe · 10 km
- Hamtramck · 11 km
- St. Clair Shores · 14 km
- Detroit · 15 km
- Roseville · 15 km
- Warren · 16 km
Frost dates recorded at GROSSE POINTE FARMS, 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 Grosse Pointe Park, MI — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00203477. Retrieved from https://blissgarden.com/michigan/grosse-pointe-park.