When to plant in Spring Hill, TN
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Spring Hill, Tennessee — all computed from Spring Hill's nearest NOAA weather station.
Zone 7b means many perennials and even some tender shrubs overwinter in Spring Hill, while your frost dates still decide when annuals go out.
Frost probability
THOMPSON STN · 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 Spring Hill’s own odds, recorded at THOMPSON STN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 17 | Apr 1 | Oct 11 | Oct 23 | Nov 4 |
| 32°F | Apr 22 | Apr 3 | Mar 17 | Oct 20 | Nov 1 | Nov 15 |
| 28°F | Apr 11 | Mar 23 | Mar 2 | Oct 30 | Nov 11 | Nov 30 |
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 Spring Hill, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 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.
Spring Hill planting FAQ
When is the last spring frost in Spring Hill, TN?
Plan for the last spring frost in Spring Hill around April 3 (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 Spring Hill, TN?
The first fall frost in Spring Hill typically arrives around November 1 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Spring Hill in?
Spring Hill is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Spring Hill?
There are roughly 212 frost-free days in Spring Hill (a long growing season), running from the average last frost around April 3 to the first fall frost near November 1.
When should I plant tomatoes in Spring Hill?
In Spring Hill, start tomato seeds indoors around February 6–February 20, then transplant seedlings outdoors around April 10 once the danger of frost has passed.
Never miss a window in Spring Hill
An email when it’s time to start seeds, transplant, and sow — timed to Spring Hill’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at THOMPSON STN, 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 Spring Hill, TN — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00408953. Retrieved from https://blissgarden.com/tennessee/spring-hill.