When to plant in Allendale, MI
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Allendale, Michigan — is derived from the closest NOAA station with complete climate normals.
Heads up: the nearest complete-normals station is about 23 km from Allendale, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. In zone 6a, Allendale gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
GRAND HAVEN WWTP · 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 Allendale’s own odds, recorded at GRAND HAVEN WWTP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 30 | May 13 | Apr 26 | Sep 25 | Oct 9 | Oct 25 |
| 32°F | May 16 | Apr 30 | Apr 17 | Oct 5 | Oct 24 | Nov 6 |
| 28°F | May 6 | Apr 18 | Apr 4 | Oct 21 | Nov 5 | Nov 22 |
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 Allendale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 28 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.
Allendale planting FAQ
When is the last spring frost in Allendale, MI?
On average, the last spring frost in Allendale is around April 30 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Allendale, MI?
Expect Allendale's first fall frost near October 24 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Allendale in?
Allendale is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Allendale?
Allendale has about 177 frost-free days — a moderate growing season — between the average last spring frost (April 30) and first fall frost (October 24).
When should I plant tomatoes in Allendale?
For Allendale, sow tomatoes indoors about March 5–March 19 and move the seedlings out around May 7, after the last spring frost.
Never miss a window in Allendale
An email when it’s time to start seeds, transplant, and sow — timed to Allendale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Jenison · 13 km
- Walker · 15 km
- Grandville · 18 km
- Wyoming · 22 km
- Comstock Park · 23 km
- Grand Rapids · 24 km
- Grand Haven · 24 km
- Holland · 27 km
Frost dates recorded at GRAND HAVEN WWTP, 23 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 Allendale, MI — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00203295. Retrieved from https://blissgarden.com/michigan/allendale.