Hanna, Oklahoma, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, prickly pear, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Hanna, 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 Hanna 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 Hanna — soil, climate, flood, and parcel records. How we handle your address.
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Hanna — the short answer
Hanna, Oklahoma: USDA zone 7b, about 248 days between hard freezes, across 154 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~248
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 154 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 7b is Hanna's average, not your lot's — a low corner or a tree line moves it. Against Hanna's 248-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Hanna
Each reading below is measured for Hanna itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHanna runs about 248 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
MeasuredHanna sits in USDA hardiness zone 7b.
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 Hanna is in
Hanna sits in the Arkansas Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Hanna's own centroid, and it is not what its county reads: McIntosh County is mostly Cross Timbers. The wider page above you is answering a different question about different ground.
What Grows in Hanna
Every plant below cleared Hanna's own zone 7b and its 248-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Hanna?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 17 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Hanna
Closest first, within ~10 miles of Hanna. Listing isn't leaking, and distance isn't exposure.
- Hopkins Oil Co IncUnderground Storage Tanks · 700 ft
- Wells Oil CompanyUnderground Storage Tanks · 700 ft
- Ez Go #41Underground Storage Tanks · 5.3 mi
- Fac. Name: Finisher, Well No. 1Nitrate · 5.7 mi
- Van Eaton FarmsNitrate · 5.8 mi
- Fac. Name: Finisher, Well No. 2Nitrate · 5.8 mi
- Fac. Name: Finisher, Well No. 3Nitrate · 5.8 mi
- Fac. Name: Finisher, Well No. 5Nitrate · 6.0 mi
- Fac. Name: Finisher, Well No. 4Nitrate · 6.0 mi
- VAN EATON FARMSCAFO · 6.5 mi
- Middle Creek RanchUnderground Storage Tanks · 6.7 mi
- Indianola SchoolsUnderground Storage Tanks · 7.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Hanna'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 Hanna.
Total Sites
38
within ~10 miles of Hanna
Risk Level
Low
Highest-severity
1 concentrated animal feeding operation
Sources Checked
within ~10 miles of Hanna
Severity Distribution
within ~10 miles of Hanna
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Hanna, Nitrate runs higher than the national average — 26 sites within ~10 miles of Hanna. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Hanna
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 Hanna average
Your land is one point inside Hanna
Everything above resolves to Hanna as a whole — one PHZM band and one 28°F frost record, read across 154 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 Hanna Average
Hanna Average
- ●USDA Zones 7b, averaged across Hanna
- ●One soil character for all of Hanna
- ●Frost dates read at Hanna's scale: Mar 14 to Nov 17
YOUR Parcel
- ✓Your exact zone, not Hanna's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Hanna
Pull a site-specific report for your exact address in Hanna, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Hanna averages can't show:
We read public map data around Hanna — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Hanna average
How we know this about Hanna
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 Hanna’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 Hanna
When does frost risk typically end in Hanna?
The last hard freeze (28°F) in Hanna typically lands around Mar 14, 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 4.
When is the first frost in Hanna?
The first hard freeze (28°F) in Hanna typically arrives around Nov 17, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 3, so the watching starts about Oct 18 — about 248 days after the spring freeze cleared.
How long is the growing season in Hanna?
Measured between 28°F hard freezes, Hanna sees about 248 frost-free days — roughly Mar 14 through Nov 17, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 4 to Nov 3, about 213 days.
Is the soil safe to grow vegetables in Hanna?
The federal record around Hanna is light — 38 documented sites across the 9 federal source types we checked, mostly Nitrate entries (26), the nearest Underground Storage Tanks record about 0.1 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 Hanna?
From about Oct 18 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 17 (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 17. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Hanna's scale — its 7b band and its 248-day season. Your yard writes its own version of Hanna'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 Hanna’s own scale
6 of the readings below were taken at Hanna's own scale — its own ~248-day season between 28°F freezes, the 154 acres it covers and 38 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Hanna's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Hanna's own 28°F hard-freeze dates, about Mar 14 and Nov 17 and the ~248-day span between themNOAA 1991–2020 Climate Normals
- 38 documented contamination sites on the federal record near Hanna, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Hanna's boundary and the 154 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~248-day seasonGrowable Ground crop-matching engine
- Hanna sits in the Arkansas Valley — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Hanna's 154 acres read through its county's SSURGO summaryfrom McIntosh County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom McIntosh 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 McIntosh County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Hanna's 154 acreswhy one lot differs from the next →
- Which side of Hanna you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 154 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 Hanna-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaHanna sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides