When to plant in Lebanon, MO
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Lebanon, Missouri — is derived from the closest NOAA station with complete climate normals.
Zone 6b means Lebanon sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
LEBANON 2W · 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 Lebanon’s own odds, recorded at LEBANON 2W.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | Apr 29 | Apr 12 | Sep 27 | Oct 11 | Oct 25 |
| 32°F | May 2 | Apr 17 | Mar 31 | Oct 7 | Oct 21 | Nov 3 |
| 28°F | Apr 22 | Apr 4 | Mar 18 | Oct 16 | Oct 30 | Nov 14 |
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 Lebanon, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 39 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.
Lebanon planting FAQ
When is the last spring frost in Lebanon, MO?
On average, the last spring frost in Lebanon is around April 17 (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 Lebanon, MO?
In Lebanon, the first 32°F freeze of fall lands around October 21 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Lebanon in?
Lebanon 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 Lebanon?
There are roughly 187 frost-free days in Lebanon (a moderate growing season), running from the average last frost around April 17 to the first fall frost near October 21.
When should I plant tomatoes in Lebanon?
In Lebanon, start tomato seeds indoors around February 20–March 6, then transplant seedlings outdoors around April 24 once the danger of frost has passed.
Never miss a window in Lebanon
An email when it’s time to start seeds, transplant, and sow — timed to Lebanon’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Fort Leonard Wood · 48 km
- Bolivar · 67 km
- Springfield · 77 km
- Rolla · 85 km
- Ozark · 86 km
- Republic · 87 km
- Nixa · 90 km
- Jefferson City · 108 km
Frost dates recorded at LEBANON 2W, 3 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 Lebanon, MO — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00234825. Retrieved from https://blissgarden.com/missouri/lebanon.