Springfield, Kentucky, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Growers here do well with cabbage, hazelnut, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Springfield, 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 Springfield 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 Springfield — soil, climate, flood, and parcel records. How we handle your address.
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Springfield — the short answer
Springfield, Kentucky: USDA zone 7a, about 222 days between hard freezes, across 3K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~222
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 Springfield's average, not your lot's — a low corner or a tree line moves it. Against Springfield's 222-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Springfield
Each reading below is measured for Springfield itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSpringfield runs about 222 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
MeasuredSpringfield 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 Springfield is in
Springfield sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Springfield's own centroid rather than borrowed from Washington County.
What Grows in Springfield
Every plant below cleared Springfield's own zone 7a and its 222-day season. Each card opens that plant's Kentucky profile. How we score.
Is it too late to plant in Springfield?
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 Mar 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 7 — 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 Springfield
Survey cells within 31 miles of Springfield checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 74 miles off. What to watch for.
What's on the federal record near Springfield
Closest first, within ~10 miles of Springfield. Listing isn't leaking, and distance isn't exposure.
- INOAC AUTOMOTIVE, LLCToxics Release Inventory · 1300 ft
- INOAC AUTOMOTIVE, LLCBrownfields · 1300 ft
- TSR LLC IGA (BP)Underground Storage Tanks · 1500 ft
- Washington Co State Maintenance GarageUnderground Storage Tanks · 1800 ft
- BARBER CABINET COMPANYBrownfields · 1900 ft
- ALLTECH INCBrownfields · 1900 ft
- ALLTECH INCToxics Release Inventory · 1900 ft
- Barber Cabinet Co IncUnderground Storage Tanks · 2500 ft
- REGIONAL RECYCLING CENTER, WASHINGTON CO. FISCAL COURTBrownfields · 2600 ft
- RELADYNE INCToxics Release Inventory · 2600 ft
- Haydon Oil CoUnderground Storage Tanks · 0.5 mi
- BLUEGRASS INGREDIENTS, INCToxics Release Inventory · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Springfield'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 Springfield.
Total Sites
125
within ~10 miles of Springfield
Risk Level
Moderate
Highest-severity
16 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Springfield
Severity Distribution
within ~10 miles of Springfield
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Springfield, two things run higher than the national average within ~10 miles of Springfield — Toxics Release Inventory (16 sites) and Underground Storage Tanks (95 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Springfield
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 Springfield average
Your land is one point inside Springfield
Everything above resolves to Springfield as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Springfield Average
Springfield Average
- ●USDA Zones 7a, averaged across Springfield
- ●One soil character for all of Springfield
- ●Frost dates read at Springfield's scale: Mar 30 to Nov 7
YOUR Parcel
- ✓Your exact zone, not Springfield's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Springfield
Pull a site-specific report for your exact address in Springfield, Kentucky — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Springfield averages can't show:
We read public map data around Springfield — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Springfield average
How we know this about Springfield
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 Springfield’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 Springfield
When does frost risk typically end in Springfield?
The last hard freeze (28°F) in Springfield typically lands around Mar 30, 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 20.
When is the first frost in Springfield?
The first hard freeze (28°F) in Springfield typically arrives around Nov 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 24, so the watching starts about Oct 8 — about 222 days after the spring freeze cleared.
How long is the growing season in Springfield?
Measured between 28°F hard freezes, Springfield sees about 222 frost-free days — roughly Mar 30 through Nov 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 20 to Oct 24, about 187 days.
Is the soil safe to grow vegetables in Springfield?
The federal record around Springfield shows 125 documented sites, mostly Underground Storage Tanks entries (95), the nearest Toxics Release Inventory record about 0.3 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Springfield?
From about Oct 8 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 7 (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 7. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Springfield's scale — its 7a band and its 222-day season. Your yard writes its own version of Springfield'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 Springfield’s own scale
7 of the readings below were taken at Springfield's own scale — its own ~222-day season between 28°F freezes, the 2,633 acres it covers and 125 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Springfield's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Springfield's own 28°F hard-freeze dates, about Mar 30 and Nov 7 and the ~222-day span between themNOAA 1991–2020 Climate Normals
- 125 documented contamination sites on the federal record near Springfield, the closest Toxics Release Inventory record about 0.3 miles out from the town centreFederal environmental registers
- Springfield's boundary and the 2,633 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~222-day seasonGrowable Ground crop-matching engine
- The ecoregion at Springfield's own centroid, the Interior PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Springfield 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 Springfield's 2,633 acres read through its county's SSURGO summaryfrom Washington County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Washington County
- The growing challenges every Kentucky grower plans around — written at state scale, so they stay on the state guidefrom Kentucky
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Washington County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Springfield's 2,633 acreswhy one lot differs from the next →
- Which side of Springfield you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,633 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory record about 0.3 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 Springfield-wide figureread your own land →
More in Kentucky
Wider growing context
What grows across KentuckySpringfield sits outside our named growing regions, so Kentucky as a whole is its closest context here.
Nearby growing guides