When to plant in Warsaw, IN
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Warsaw, Indiana — is derived from the closest NOAA station with complete climate normals.
In zone 6a, Warsaw gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
WARSAW · 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 Warsaw’s own odds, recorded at WARSAW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 25 | May 9 | Apr 23 | Sep 20 | Oct 5 | Oct 20 |
| 32°F | May 14 | Apr 28 | Apr 13 | Oct 1 | Oct 18 | Oct 30 |
| 28°F | May 4 | Apr 16 | Apr 1 | Oct 17 | Oct 30 | 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 Warsaw, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 29 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.
Warsaw planting FAQ
When is the last spring frost in Warsaw, IN?
Plan for the last spring frost in Warsaw around April 28 (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 Warsaw, IN?
The first fall frost in Warsaw typically arrives around October 18 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Warsaw in?
Warsaw 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 Warsaw?
Warsaw has about 173 frost-free days — a moderate growing season — between the average last spring frost (April 28) and first fall frost (October 18).
When should I plant tomatoes in Warsaw?
For Warsaw, sow tomatoes indoors about March 3–March 17 and move the seedlings out around May 5, after the last spring frost.
Never miss a window in Warsaw
An email when it’s time to start seeds, transplant, and sow — timed to Warsaw’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Goshen · 36 km
- Plymouth · 41 km
- Wabash · 49 km
- Huntington · 50 km
- Elkhart · 50 km
- Kendallville · 54 km
- Mishawaka · 55 km
- Peru · 57 km
Frost dates recorded at WARSAW, 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 Warsaw, IN — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00129240. Retrieved from https://blissgarden.com/indiana/warsaw.