Oran, Missouri, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Well-matched crops include cabbage, hazelnut, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Oran, 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 Oran 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 Oran — soil, climate, flood, and parcel records. How we handle your address.
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Oran — the short answer
Oran, Missouri: USDA zone 7a, about 235 days between hard freezes, across 674 acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~235
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 674 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 7a is Oran's average, not your lot's — a low corner or a tree line moves it. Against Oran's 235-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oran
Each reading below is measured for Oran itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredOran runs about 235 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
MeasuredOran sits in USDA hardiness zone 7a.
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 Oran is in
Oran sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Oran's own centroid, and it is not what its county reads: Scott County is mostly Mississippi Alluvial Plain. The wider page above you is answering a different question about different ground.
What Grows in Oran
Every plant below cleared Oran's own zone 7a and its 235-day season. Each card opens that plant's Missouri profile. How we score.
Is it too late to plant in Oran?
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 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Oran
Survey cells within 31 miles of Oran checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 176 miles off. What to watch for.
What's on the federal record near Oran
Closest first, within ~10 miles of Oran. Listing isn't leaking, and distance isn't exposure.
- HYPONEX CORPORATIONUnderground Storage Tanks · 300 ft
- MIKE TODT'S STATIONUnderground Storage Tanks · 300 ft
- ALBERT COOK GARAGEUnderground Storage Tanks · 600 ft
- ORAN KWIK STOPUnderground Storage Tanks · 650 ft
- JEROME DIEBOLDUnderground Storage Tanks · 700 ft
- T28N R13E 18DBC1Nitrate · 700 ft
- HALTER GAS COUnderground Storage Tanks · 900 ft
- HEISSERER SINCLAIR STATIONUnderground Storage Tanks · 900 ft
- T28N R13E 17CDA1Nitrate · 1200 ft
- T28N R13E 18DDDNitrate · 1200 ft
- ORAN R 3 SCHOOL DISTRICTBrownfields · 1500 ft
- BRINKER'S SERVICE STATIONUnderground Storage Tanks · 2200 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Oran'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 Oran.
Sources Checked
within ~10 miles of Oran
Severity Distribution
within ~10 miles of Oran
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oran, two things run higher than the national average within ~10 miles of Oran — CAFO (9 sites) and Nitrate (38 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Oran
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 Oran average
Your land is one point inside Oran
Everything above resolves to Oran as a whole — one PHZM band and one 28°F frost record, read across 674 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 city 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 Oran Average
Oran Average
- ●USDA Zones 7a, averaged across Oran
- ●One soil character for all of Oran
- ●Frost dates read at Oran's scale: Mar 20 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Oran's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oran
Pull a site-specific report for your exact address in Oran, Missouri — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oran averages can't show:
We read public map data around Oran — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oran average
How we know this about Oran
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Oran’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 city grain anywhere on this page — there is no city-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 Oran
When does frost risk typically end in Oran?
The last hard freeze (28°F) in Oran typically lands around Mar 20, 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 10.
When is the first frost in Oran?
The first hard freeze (28°F) in Oran typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 235 days after the spring freeze cleared.
How long is the growing season in Oran?
Measured between 28°F hard freezes, Oran sees about 235 frost-free days — roughly Mar 20 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 10 to Oct 27, about 200 days.
Is the soil safe to grow vegetables in Oran?
The federal record around Oran is a meaningful one — 99 documented sites, mostly Underground Storage Tanks entries (40), the nearest Underground Storage Tanks record under a tenth of a mile out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Oran?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oran's scale — its 7a band and its 235-day season. Your yard writes its own version of Oran'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 Oran’s own scale
7 of the readings below were taken at Oran's own scale — its own ~235-day season between 28°F freezes, the 674 acres it covers and 99 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Oran's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Oran's own 28°F hard-freeze dates, about Mar 20 and Nov 10 and the ~235-day span between themNOAA 1991–2020 Climate Normals
- 99 documented contamination sites on the federal record near Oran, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Oran's boundary and the 674 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~235-day seasonGrowable Ground crop-matching engine
- Oran sits in the Interior River Valleys and Hills — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Oran checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Oran's 674 acres read through its county's SSURGO summaryfrom Scott County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Scott County
- The growing challenges every Missouri grower plans around — written at state scale, so they stay on the state guidefrom Missouri
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Scott County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oran's 674 acreswhy one lot differs from the next →
- Which side of Oran you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 674 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Oran-wide figureread your own land →