When to plant in Vermilion, OH
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Vermilion, Ohio — is derived from the closest NOAA station with complete climate normals.
In zone 6b, Vermilion gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
ELYRIA LORAIN CO AP · 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 Vermilion’s own odds, recorded at ELYRIA LORAIN CO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 19 | May 5 | Apr 21 | Sep 28 | Oct 10 | Oct 26 |
| 32°F | May 10 | Apr 24 | Apr 9 | Oct 8 | Oct 24 | Nov 6 |
| 28°F | Apr 26 | Apr 11 | Mar 29 | Oct 21 | Nov 4 | Nov 19 |
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 Vermilion, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 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.
Vermilion planting FAQ
When is the last spring frost in Vermilion, OH?
Vermilion's average last spring frost falls near April 24 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Vermilion, OH?
The first fall frost in Vermilion typically arrives around October 24 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Vermilion in?
Vermilion 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 Vermilion?
Vermilion has about 183 frost-free days — a moderate growing season — between the average last spring frost (April 24) and first fall frost (October 24).
When should I plant tomatoes in Vermilion?
For Vermilion, 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 Vermilion
An email when it’s time to start seeds, transplant, and sow — timed to Vermilion’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ELYRIA LORAIN CO AP, 13 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 Vermilion, OH — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00004849. Retrieved from https://blissgarden.com/ohio/vermilion.