When to plant in Martinsville, IN
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Martinsville, Indiana — all computed from Martinsville's nearest NOAA weather station.
In zone 6a, Martinsville gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
MARTINSVILLE 2 SW · 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 Martinsville’s own odds, recorded at MARTINSVILLE 2 SW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 21 | May 4 | Apr 20 | Sep 24 | Oct 6 | Oct 19 |
| 32°F | May 11 | Apr 24 | Apr 10 | Oct 2 | Oct 15 | Oct 29 |
| 28°F | Apr 30 | Apr 12 | Mar 29 | Oct 12 | Oct 26 | Nov 7 |
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 Martinsville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 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.
Martinsville planting FAQ
When is the last spring frost in Martinsville, IN?
On average, the last spring frost in Martinsville is around April 24 (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 Martinsville, IN?
Expect Martinsville's first fall frost near October 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Martinsville in?
Martinsville 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 Martinsville?
Martinsville has about 174 frost-free days — a moderate growing season — between the average last spring frost (April 24) and first fall frost (October 15).
When should I plant tomatoes in Martinsville?
For Martinsville, sow tomatoes indoors about February 27–March 13 and move the seedlings out around May 1, after the last spring frost.
Never miss a window in Martinsville
An email when it’s time to start seeds, transplant, and sow — timed to Martinsville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bargersville · 24 km
- Bloomington · 29 km
- Plainfield · 31 km
- Franklin · 34 km
- Greenwood · 35 km
- Avon · 39 km
- Danville · 39 km
- Beech Grove · 45 km
Frost dates recorded at MARTINSVILLE 2 SW, 2 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 Martinsville, IN — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00125407. Retrieved from https://blissgarden.com/indiana/martinsville.