When to plant in Alexandria, KY
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Alexandria, Kentucky — all computed from Alexandria's nearest NOAA weather station.
Heads up: the nearest complete-normals station is about 15 km from Alexandria, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 6b means Alexandria sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
CINCINNATI LUNKEN 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 Alexandria’s own odds, recorded at CINCINNATI LUNKEN AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | Apr 29 | Apr 14 | Oct 2 | Oct 14 | Oct 27 |
| 32°F | May 3 | Apr 16 | Apr 2 | Oct 12 | Oct 25 | Nov 5 |
| 28°F | Apr 18 | Apr 2 | Mar 19 | Oct 24 | Nov 4 | Nov 18 |
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 Alexandria, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Alexandria planting FAQ
When is the last spring frost in Alexandria, KY?
On average, the last spring frost in Alexandria is around April 16 (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 Alexandria, KY?
The first fall frost in Alexandria typically arrives around October 25 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Alexandria in?
Alexandria 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 Alexandria?
There are roughly 192 frost-free days in Alexandria (a moderate growing season), running from the average last frost around April 16 to the first fall frost near October 25.
When should I plant tomatoes in Alexandria?
In Alexandria, start tomato seeds indoors around February 19–March 5, then transplant seedlings outdoors around April 23 once the danger of frost has passed.
Never miss a window in Alexandria
An email when it’s time to start seeds, transplant, and sow — timed to Alexandria’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Forestville · 12 km
- Covington · 14 km
- Independence · 14 km
- Fort Thomas · 14 km
- Amelia · 16 km
- Newport · 16 km
- Erlanger · 20 km
- Cincinnati · 22 km
Frost dates recorded at CINCINNATI LUNKEN AP, 15 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 Alexandria, KY — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093812. Retrieved from https://blissgarden.com/kentucky/alexandria.