When to plant in Vadnais Heights, MN
USDA Zone 5aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Vadnais Heights, Minnesota — all computed from Vadnais Heights's nearest NOAA weather station.
Zone 5a means Vadnais Heights sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
VADNAIS LAKE · 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 Vadnais Heights’s own odds, recorded at VADNAIS LAKE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | May 2 | Apr 19 | Sep 24 | Oct 7 | Oct 20 |
| 32°F | May 7 | Apr 23 | Apr 9 | Oct 3 | Oct 20 | Nov 2 |
| 28°F | Apr 27 | Apr 14 | Apr 2 | Oct 15 | Oct 31 | 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 Vadnais Heights, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 13 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.
Vadnais Heights planting FAQ
When is the last spring frost in Vadnais Heights, MN?
Plan for the last spring frost in Vadnais Heights around April 23 (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 Vadnais Heights, MN?
Expect Vadnais Heights's first fall frost near October 20 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Vadnais Heights in?
Vadnais Heights is in USDA hardiness zone 5a. In zone 5a, winters are cold — pick cold-hardy varieties and protect tender crops.
How long is the growing season in Vadnais Heights?
There are roughly 180 frost-free days in Vadnais Heights (a moderate growing season), running from the average last frost around April 23 to the first fall frost near October 20.
When should I plant tomatoes in Vadnais Heights?
In Vadnais Heights, start tomato seeds indoors around February 26–March 12, then transplant seedlings outdoors around April 30 once the danger of frost has passed.
Never miss a window in Vadnais Heights
An email when it’s time to start seeds, transplant, and sow — timed to Vadnais Heights’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Little Canada · 4 km
- White Bear Lake · 4 km
- Maplewood · 5 km
- Shoreview · 6 km
- North St. Paul · 7 km
- Roseville · 8 km
- New Brighton · 11 km
- Oakdale · 11 km
Frost dates recorded at VADNAIS LAKE, 3 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 Vadnais Heights, MN — Frost Dates & Zone 5a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00218477. Retrieved from https://blissgarden.com/minnesota/vadnais-heights.