Faulkton, South Dakota, sits in USDA hardiness zone 4b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, cranberry, turkish rocket, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Faulkton, 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 Faulkton 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 Faulkton — soil, climate, flood, and parcel records. How we handle your address.
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Faulkton — the short answer
Faulkton, South Dakota: USDA zone 4b, about 163 days between hard freezes, across 648 acres of city.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~163
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 648 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 4b is Faulkton's average, not your lot's — a low corner or a tree line moves it. Against Faulkton's 163-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Faulkton
Each reading below is measured for Faulkton itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredFaulkton runs about 163 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredFaulkton sits in USDA hardiness zone 4b.
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 Faulkton is in
Faulkton sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Faulkton's own centroid, and it is not what its county reads: Faulk County is mostly Northwestern Glaciated Plains. The wider page above you is answering a different question about different ground.
What Grows in Faulkton
Every plant below cleared Faulkton's own zone 4b and its 163-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Faulkton?
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 Apr 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 29 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 9 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
What's on the federal record near Faulkton
Closest first, within ~10 miles of Faulkton. Listing isn't leaking, and distance isn't exposure.
- BERMAC 2Underground Storage Tanks · 350 ft
- 118N69W14BCCA (2)Nitrate · 500 ft
- FAULKTON FARMERS ELEV COUnderground Storage Tanks · 500 ft
- FARMERS UNION OIL COUnderground Storage Tanks · 500 ft
- FAULKTON PUBLIC SCHOOLUnderground Storage Tanks · 550 ft
- FAULKTON SCHOOL DISTRICT 24-2Brownfields · 550 ft
- 118N69W14BCBC2Nitrate · 800 ft
- VOGEL'SUnderground Storage Tanks · 1000 ft
- BERMACUnderground Storage Tanks · 1000 ft
- FAULK COUNTY HWY DEPARTMENTUnderground Storage Tanks · 1200 ft
- NORTHERN PLAINS COOPERATIVEBrownfields · 1600 ft
- 118N69W15DACBNitrate · 1700 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Faulkton'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 Faulkton.
Sources Checked
within ~10 miles of Faulkton
Severity Distribution
within ~10 miles of Faulkton
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Faulkton, Nitrate runs higher than the national average — 38 sites within ~10 miles of Faulkton. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Faulkton
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 Faulkton average
Your land is one point inside Faulkton
Everything above resolves to Faulkton as a whole — one PHZM band and one 28°F frost record, read across 648 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 Faulkton Average
Faulkton Average
- ●USDA Zones 4b, averaged across Faulkton
- ●One soil character for all of Faulkton
- ●Frost dates read at Faulkton's scale: Apr 29 to Oct 9
YOUR Parcel
- ✓Your exact zone, not Faulkton's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Faulkton
Pull a site-specific report for your exact address in Faulkton, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Faulkton averages can't show:
We read public map data around Faulkton — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Faulkton average
How we know this about Faulkton
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 Faulkton’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 Faulkton
When does frost risk typically end in Faulkton?
The last hard freeze (28°F) in Faulkton typically lands around Apr 29, 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 May 20.
When is the first frost in Faulkton?
The first hard freeze (28°F) in Faulkton typically arrives around Oct 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 25, so the watching starts about Sep 9 — about 163 days after the spring freeze cleared.
How long is the growing season in Faulkton?
Measured between 28°F hard freezes, Faulkton sees about 163 frost-free days — roughly Apr 29 through Oct 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 20 to Sep 25, about 128 days.
Is the soil safe to grow vegetables in Faulkton?
The federal record around Faulkton shows 53 documented sites, mostly Nitrate entries (38), the nearest Underground Storage Tanks record under a tenth of a mile 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 Faulkton?
From about Sep 9 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 Oct 9 (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 Oct 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Faulkton's scale — its 4b band and its 163-day season. Your yard writes its own version of Faulkton'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 Faulkton’s own scale
6 of the readings below were taken at Faulkton's own scale — its own ~163-day season between 28°F freezes, the 648 acres it covers and 53 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Faulkton's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Faulkton's own 28°F hard-freeze dates, about Apr 29 and Oct 9 and the ~163-day span between themNOAA 1991–2020 Climate Normals
- 53 documented contamination sites on the federal record near Faulkton, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Faulkton's boundary and the 648 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~163-day seasonGrowable Ground crop-matching engine
- Faulkton sits in the Northern Glaciated Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Faulkton's 648 acres read through its county's SSURGO summaryfrom Faulk County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Faulk County
- The growing challenges every South Dakota grower plans around — written at state scale, so they stay on the state guidefrom South Dakota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Faulk County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Faulkton's 648 acreswhy one lot differs from the next →
- Which side of Faulkton you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 648 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 Faulkton-wide figureread your own land →
More in South Dakota
Wider growing context
What grows across South DakotaFaulkton sits outside our named growing regions, so South Dakota as a whole is its closest context here.
Nearby growing guides