Scott County, in Missouri, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, hazelnut, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Scott County lies within the Missouri Bootheel and the Mississippi Delta — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Scott County holds more than one microclimate.
Soils and elevations shift across Scott County, so your frost dates and drainage aren't the county average. 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 Scott County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Scott County — the short answer
Scott County, Missouri: USDA zone 7a, about 239 days between hard freezes, across 269K acres.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 19
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 13
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~239
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 269K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 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 Scott County's average, not your lot's — a low corner or a tree line moves it. Against Scott County's 239-day season, see what your own ground reads.
Heat and winter chill in Scott County
Across a year, Scott County accumulates about 4,302 growing degree days above 50°F, about 549 more than the middle Missouri county — ahead of 109 of Missouri’s 115 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Winter banks about 2,463 hours below 45°F. Chill is what tells a fruit tree its dormancy is over, and it is set by climate rather than by anything you can build.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Scott County
Across Scott County, the ground is predominantly Entisols, where Memphis, Scotco, and Sharkey are the most extensive named soil series. The soil is generally poorly drained with a silt loam surface. Topsoil pH runs about 5.5–6.4, moderately acidic. Rainfall drains through hydrologic group A soils.
Soil order
Entisols
Drainage
Poorly drained
Prime farmland
19%
Hydric soils
25%
Soil still varies lot by lot — soil types explained.
How the ground varies across Scott County
The USDA soil survey maps 22% of Scott County as poorly drained — but another 78% drains differently: 21% well drained, 19% somewhat poorly drained.
Memphis is the most extensive named soil at 18% of mapped acres, then Scotco (15%) and Sharkey (10%).
Which of them your own lot sits on is a parcel question, not a county one. Check your address for the survey at your boundary.
What this means for growing in Scott County
Each reading below is measured for Scott County itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Drainage
MeasuredThe dominant soils across Scott County are poorly drained, in hydrologic group A — ground that sheds water slowly.
Beds can stay saturated for days after heavy rain, and the roots of most vegetables, berries, and fruit trees suffocate or rot in soil that never drains.
Raised beds or mounded rows lift roots above the wet zone; choose water-tolerant crops for the lowest spots.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Scott County runs about pH 5.5–6.4, on the acidic side.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Season length
MeasuredScott County runs about 239 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
MeasuredScott County 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 Scott County is in
Scott County spans 2 EPA Level III ecoregions — Mississippi Alluvial Plain (73%) and Interior River Valleys and Hills (27%). Which one your land falls in changes what grows wild there and how the ground behaves, and a county-wide answer cannot tell you which.
What Grows in Scott County
We scored all 1,086 plants against Scott County's own USDA zone 7a and its own 239-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's Missouri profile.
Is it too late to plant in Scott County?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 13 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Scott County
- Japanese beetle1 documented records
- monarch butterfly2 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Scott County
USGS estimates 168,651 lb of Glyphosate on Scott County farmland in 2019, its largest by weight, ahead of Metolachlor & Metolachlor-s (72,192 lb) and Atrazine (65,290 lb).
Farmland across the whole county, not any one lot. Check your address for the site-by-site record.
Safe to Grow Here?
What the federal record shows across Scott County — and how to grow with it.
We checked the federal record across Scott County — 278 documented sites across 7 of the 9 source types we track.
The most significant on record: 1 Superfund site. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
There's a meaningful federal record across Scott County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Scott County
Closest first, across Scott County. Listing isn't leaking, and distance isn't exposure.
- FREED FARMSCAFO · 1500 ft
- DIRNBERGER POULTRYCAFO · 0.9 mi
- POWELL POULTRY FARM-BRENT POWELLCAFO · 0.9 mi
- T27N R14E 06ABBNitrate · 1.1 mi
- SCHOTT POULTRYCAFO · 2.0 mi
- T28N R13E 34CAB2Nitrate · 2.2 mi
- MORELY SHEDUnderground Storage Tanks · 3.0 mi
- WHEELER TRUCK TRAILER EQUIPMENT CO-WHEELER TRUCK TRAILER EQUIPMENT COBrownfields · 3.1 mi
- WHEELER TRUCK TRAILER EQUIPMENT CO-WHEELER TRUCK TRAILER EQUIPMENT COToxics Release Inventory · 3.1 mi
- T27N R14E 03ADB1Nitrate · 3.2 mi
- AMERIMART #9Underground Storage Tanks · 3.3 mi
- EXPRESS FUEL CENTERUnderground Storage Tanks · 3.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Scott County'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 Scott County.
Severity Distribution
across Scott County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Scott County, two things run higher than the national average across Scott County — CAFO (10 sites) and PFAS (3 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.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Scott County
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 Scott County average
Your land is one point inside Scott County
Everything above resolves to Scott County as a whole — one PHZM band and one county frost record, read across 269K 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 county 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 county average.
Your Lot vs the Scott County Average
Scott County Average
- ●USDA Zones 7a, averaged across Scott County
- ●One soil character for all of Scott County
- ●Frost dates read at Scott County's scale: Mar 19 to Nov 13
YOUR Parcel
- ✓Your exact zone, not Scott County's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Scott County
Pull a site-specific report for your exact address in Scott County, Missouri — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Scott County averages can't show:
We read public map data around Scott County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Scott County average
How we know this about Scott County
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Scott County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Scott County
When does frost risk typically end in Scott County?
The last hard freeze (28°F) in Scott County typically lands around Mar 19, 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 9.
How long is the growing season in Scott County?
Measured between 28°F hard freezes, Scott County sees about 239 frost-free days — roughly Mar 19 through Nov 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 9 to Oct 30, about 204 days.
Is the soil safe to grow vegetables in Scott County?
The federal record around Scott County is a meaningful one — 278 documented sites, mostly Underground Storage Tanks entries (132), the nearest CAFO record about 0.3 miles 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.
Everything above is measured at Scott County's scale — its 7a band and its 239-day season. Your yard writes its own version of Scott County's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Missouri's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Scott County’s own scale
9 of the readings below were taken at Scott County's own scale — its own ~239-day span between 28°F freezes, the 3 most extensive soil series mapped here and 278 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Scott County's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Scott County's own 28°F hard-freeze dates and its ~239-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Scott CountyUSDA NRCS SSURGO
- 278 documented contamination sites inside the county boundary, distance-sorted from its center — the closest CAFO record about 0.3 miles outFederal environmental registers
- Scott County's boundary and the 268,804 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~239-day seasonGrowable Ground crop-matching engine
- The 2 ecoregions Scott County spans, Mississippi Alluvial Plain the largestUS EPA Level III Ecoregions
- Open occurrence records documented in Scott County for 2 tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Scott County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Missouri grower plans around — written at state scale, so they stay on the state guidefrom Missouri
What this page can’t tell you
- How the season shifts across Scott County — the ~239 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Scott County's 268,804 acreswhy one lot differs from the next →
- Which of those 278 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Scott Countyread your own land →