When to plant in Kingsport, TN
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Kingsport, Tennessee — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Kingsport supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Kingsport is now 7 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
KINGSPORT · 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 Kingsport’s own odds, recorded at KINGSPORT.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 10 | Apr 23 | Apr 6 | Oct 6 | Oct 20 | Nov 1 |
| 32°F | Apr 25 | Apr 9 | Mar 25 | Oct 15 | Oct 29 | Nov 10 |
| 28°F | Apr 12 | Mar 28 | Mar 10 | Oct 25 | Nov 6 | Nov 23 |
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 Kingsport, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 32 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.
Kingsport planting FAQ
When is the last spring frost in Kingsport, TN?
On average, the last spring frost in Kingsport is around April 9 (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 Kingsport, TN?
In Kingsport, the first 32°F freeze of fall lands around October 29 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Kingsport in?
Kingsport 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 Kingsport?
Kingsport has about 203 frost-free days — a moderate growing season — between the average last spring frost (April 9) and first fall frost (October 29).
When should I plant tomatoes in Kingsport?
For Kingsport, sow tomatoes indoors about February 12–February 26 and move the seedlings out around April 16, after the last spring frost.
Never miss a window in Kingsport
An email when it’s time to start seeds, transplant, and sow — timed to Kingsport’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Johnson City · 24 km
- Bristol · 29 km
- Elizabethton · 34 km
- Bristol · 36 km
- Greeneville · 46 km
- Morristown · 76 km
- Boone · 86 km
- Asheville · 105 km
Frost dates recorded at KINGSPORT, 1 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 Kingsport, TN — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00404858. Retrieved from https://blissgarden.com/tennessee/kingsport.