When to plant in Rocky River, OH
USDA Zone 7aEverything below — frost dates, hardiness zone, and what to plant when in Rocky River, Ohio — is derived from the closest NOAA station with complete climate normals.
Zone 7a means many perennials and even some tender shrubs overwinter in Rocky River, while your frost dates still decide when annuals go out.
Frost probability
CLEVELAND · 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 Rocky River’s own odds, recorded at CLEVELAND.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 17 | Apr 30 | Apr 17 | Oct 7 | Oct 22 | Nov 3 |
| 32°F | May 5 | Apr 20 | Apr 4 | Oct 21 | Nov 3 | Nov 17 |
| 28°F | Apr 21 | Apr 5 | Mar 22 | Nov 1 | Nov 13 | Nov 29 |
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 Rocky River, 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.
Rocky River planting FAQ
When is the last spring frost in Rocky River, OH?
Plan for the last spring frost in Rocky River around April 20 (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 Rocky River, OH?
Expect Rocky River's first fall frost near November 3 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Rocky River in?
Rocky River is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Rocky River?
There are roughly 197 frost-free days in Rocky River (a moderate growing season), running from the average last frost around April 20 to the first fall frost near November 3.
When should I plant tomatoes in Rocky River?
In Rocky River, start tomato seeds indoors around February 23–March 9, then transplant seedlings outdoors around April 27 once the danger of frost has passed.
Never miss a window in Rocky River
An email when it’s time to start seeds, transplant, and sow — timed to Rocky River’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Fairview Park · 3 km
- Lakewood · 5 km
- Bay Village · 6 km
- Westlake · 7 km
- Brook Park · 8 km
- North Olmsted · 8 km
- Brooklyn · 10 km
- Berea · 11 km
Frost dates recorded at CLEVELAND, 7 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 Rocky River, OH — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014820. Retrieved from https://blissgarden.com/ohio/rocky-river.