Bruce, South Dakota, sits in USDA hardiness zone 4b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with cabbage, cranberry, turkish rocket, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Bruce, 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 Bruce 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 Bruce — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Bruce — the short answer
Bruce, South Dakota: USDA zone 4b, about 166 days between hard freezes, across 237 acres of city.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~166
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 237 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 Bruce's average, not your lot's — a low corner or a tree line moves it. Against Bruce's 166-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Bruce
Each reading below is measured for Bruce itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBruce runs about 166 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
MeasuredBruce 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 Bruce is in
Bruce sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Bruce's own centroid rather than borrowed from Brookings County.
What Grows in Bruce
Every plant below cleared Bruce's own zone 4b and its 166-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Bruce?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near Bruce
Closest first, within ~10 miles of Bruce. Listing isn't leaking, and distance isn't exposure.
- 111N51W12ADBBNitrate · 200 ft
- GEORGES SERVICEUnderground Storage Tanks · 750 ft
- LAKE POINSETT ST REC AREAUnderground Storage Tanks · 750 ft
- OAKWOOD LAKES STATE PARKUnderground Storage Tanks · 750 ft
- BRUCE OILUnderground Storage Tanks · 750 ft
- 111N51W12CDDANitrate · 0.7 mi
- 112N51W35DDDDNitrate · 1.5 mi
- 112N50W31BCCCNitrate · 1.8 mi
- 111N50W 4DCDD (2)Nitrate · 2.7 mi
- 112N50W32BAAANitrate · 2.7 mi
- 112N50W30BCCCNitrate · 2.8 mi
- 111N51W10CCCC (2)Nitrate · 2.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Bruce'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 Bruce.
Total Sites
223
within ~10 miles of Bruce
Risk Level
Elevated
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Bruce
Severity Distribution
within ~10 miles of Bruce
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Bruce, Nitrate runs higher than the national average — 158 sites within ~10 miles of Bruce. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Bruce
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 Bruce average
Your land is one point inside Bruce
Everything above resolves to Bruce as a whole — one PHZM band and one 28°F frost record, read across 237 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 Bruce Average
Bruce Average
- ●USDA Zones 4b, averaged across Bruce
- ●One soil character for all of Bruce
- ●Frost dates read at Bruce's scale: Apr 25 to Oct 8
YOUR Parcel
- ✓Your exact zone, not Bruce's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Bruce
Pull a site-specific report for your exact address in Bruce, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Bruce averages can't show:
We read public map data around Bruce — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Bruce average
How we know this about Bruce
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 Bruce’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 Bruce
When does frost risk typically end in Bruce?
The last hard freeze (28°F) in Bruce typically lands around Apr 25, 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 16.
When is the first frost in Bruce?
The first hard freeze (28°F) in Bruce typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 166 days after the spring freeze cleared.
How long is the growing season in Bruce?
Measured between 28°F hard freezes, Bruce sees about 166 frost-free days — roughly Apr 25 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 16 to Sep 24, about 131 days.
Is the soil safe to grow vegetables in Bruce?
The federal record around Bruce is a meaningful one — 223 documented sites, mostly Nitrate entries (158), the nearest Nitrate 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 Bruce?
From about Sep 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 Oct 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Bruce's scale — its 4b band and its 166-day season. Your yard writes its own version of Bruce'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 Bruce’s own scale
6 of the readings below were taken at Bruce's own scale — its own ~166-day season between 28°F freezes, the 237 acres it covers and 223 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Bruce's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Bruce's own 28°F hard-freeze dates, about Apr 25 and Oct 8 and the ~166-day span between themNOAA 1991–2020 Climate Normals
- 223 documented contamination sites on the federal record near Bruce, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Bruce's boundary and the 237 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~166-day seasonGrowable Ground crop-matching engine
- The ecoregion at Bruce's own centroid, the Northern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Bruce's 237 acres read through its county's SSURGO summaryfrom Brookings County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Brookings 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 Brookings County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Bruce's 237 acreswhy one lot differs from the next →
- Which side of Bruce you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 237 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Bruce-wide figureread your own land →