Lebanon, Oklahoma, sits in USDA hardiness zone 8a — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Lebanon, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Lebanon lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Lebanon — soil, climate, flood, and parcel records. How we handle your address.
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Lebanon — the short answer
Lebanon, Oklahoma: USDA zone 8a, about 246 days between hard freezes, across 2K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~246
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 8a is Lebanon's average, not your lot's — a low corner or a tree line moves it. Against Lebanon's 246-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lebanon
Each reading below is measured for Lebanon itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLebanon runs about 246 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredLebanon sits in USDA hardiness zone 8a.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Lebanon is in
Lebanon sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at Lebanon's own centroid rather than borrowed from Marshall County.
What Grows in Lebanon
Every plant below cleared Lebanon's own zone 8a and its 246-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Lebanon?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 16 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Lebanon
Closest first, within ~10 miles of Lebanon. Listing isn't leaking, and distance isn't exposure.
- A-Ok CafeUnderground Storage Tanks · 0.9 mi
- Lebanon One StopUnderground Storage Tanks · 1.0 mi
- TASLER PALLETBrownfields · 1.0 mi
- Red River GroceryUnderground Storage Tanks · 1.2 mi
- Lebanon Corner StoreUnderground Storage Tanks · 1.2 mi
- 06S-03E-34 D 1Nitrate · 2.8 mi
- Powell GroceryUnderground Storage Tanks · 3.4 mi
- Lemons GroceryUnderground Storage Tanks · 3.7 mi
- Well Owner Name: RonNitrate · 4.2 mi
- Cryer GroceryUnderground Storage Tanks · 5.9 mi
- Groesbeck Compressor Fac.Underground Storage Tanks · 6.0 mi
- Jacob's WellUnderground Storage Tanks · 6.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lebanon's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Lebanon.
Total Sites
33
within ~10 miles of Lebanon
Risk Level
Low
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Lebanon
Severity Distribution
within ~10 miles of Lebanon
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lebanon, Underground Storage Tanks runs higher than the national average — 25 sites within ~10 miles of Lebanon. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Lebanon
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Lebanon average
Your land is one point inside Lebanon
Everything above resolves to Lebanon as a whole — one PHZM band and one 28°F frost record, read across 2K acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at town scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Lebanon Average
Lebanon Average
- ●USDA Zones 8a, averaged across Lebanon
- ●One soil character for all of Lebanon
- ●Frost dates read at Lebanon's scale: Mar 15 to Nov 16
YOUR Parcel
- ✓Your exact zone, not Lebanon's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lebanon
Pull a site-specific report for your exact address in Lebanon, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lebanon averages can't show:
We read public map data around Lebanon — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lebanon average
How we know this about Lebanon
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Lebanon’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at town grain anywhere on this page — there is no town-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Lebanon
When does frost risk typically end in Lebanon?
The last hard freeze (28°F) in Lebanon typically lands around Mar 15, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Apr 5.
When is the first frost in Lebanon?
The first hard freeze (28°F) in Lebanon typically arrives around Nov 16, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 2, so the watching starts about Oct 17 — about 246 days after the spring freeze cleared.
How long is the growing season in Lebanon?
Measured between 28°F hard freezes, Lebanon sees about 246 frost-free days — roughly Mar 15 through Nov 16, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Nov 2, about 211 days.
Is the soil safe to grow vegetables in Lebanon?
The federal record around Lebanon is light — 33 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (25), the nearest Underground Storage Tanks record about 0.9 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Lebanon?
From about Oct 17 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 16 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 16. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lebanon's scale — its 8a band and its 246-day season. Your yard writes its own version of Lebanon's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Lebanon’s own scale
6 of the readings below were taken at Lebanon's own scale — its own ~246-day season between 28°F freezes, the 1,979 acres it covers and 33 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lebanon's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Lebanon's own 28°F hard-freeze dates, about Mar 15 and Nov 16 and the ~246-day span between themNOAA 1991–2020 Climate Normals
- 33 documented contamination sites on the federal record near Lebanon, the closest Underground Storage Tanks record about 0.9 miles out from the town centreFederal environmental registers
- Lebanon's boundary and the 1,979 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~246-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lebanon's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lebanon's 1,979 acres read through its county's SSURGO summaryfrom Marshall County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Marshall County
- The growing challenges every Oklahoma grower plans around — written at state scale, so they stay on the state guidefrom Oklahoma
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Marshall County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lebanon's 1,979 acreswhy one lot differs from the next →
- Which side of Lebanon you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,979 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.9 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Lebanon-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaLebanon sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides