When to plant in Hilliard, OH
USDA Zone 6bHilliard, Ohio frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 6b means Hilliard sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
COLUMBUS OHIO STATE UNIV 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 Hilliard’s own odds, recorded at COLUMBUS OHIO STATE UNIV AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 3 | Apr 18 | Sep 28 | Oct 12 | Oct 24 |
| 32°F | May 9 | Apr 22 | Apr 6 | Oct 9 | Oct 23 | Nov 4 |
| 28°F | Apr 26 | Apr 9 | Mar 24 | Oct 20 | Nov 2 | Nov 15 |
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 Hilliard, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Hilliard planting FAQ
When is the last spring frost in Hilliard, OH?
Hilliard's average last spring frost falls near April 22 — 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 Hilliard, OH?
The first fall frost in Hilliard typically arrives around October 23 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Hilliard in?
Hilliard 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 Hilliard?
There are roughly 184 frost-free days in Hilliard (a moderate growing season), running from the average last frost around April 22 to the first fall frost near October 23.
When should I plant tomatoes in Hilliard?
In Hilliard, start tomato seeds indoors around February 25–March 11, then transplant seedlings outdoors around April 29 once the danger of frost has passed.
Never miss a window in Hilliard
An email when it’s time to start seeds, transplant, and sow — timed to Hilliard’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Upper Arlington · 7 km
- Dublin · 9 km
- Worthington · 14 km
- Columbus · 16 km
- Powell · 16 km
- Grove City · 20 km
- Bexley · 21 km
- Westerville · 23 km
Frost dates recorded at COLUMBUS OHIO STATE UNIV AP, 8 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 Hilliard, OH — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00004804. Retrieved from https://blissgarden.com/ohio/hilliard.