Belvidere, South Dakota, sits in USDA hardiness zone 5a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
A short list that earns its place here — cabbage, cranberry, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Belvidere, 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 Belvidere 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 Belvidere — soil, climate, flood, and parcel records. How we handle your address.
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Belvidere — the short answer
Belvidere, South Dakota: USDA zone 5a, about 171 days between hard freezes, across 486 acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~171
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 486 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 5a is Belvidere's average, not your lot's — a low corner or a tree line moves it. Against Belvidere's 171-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Belvidere
Each reading below is measured for Belvidere itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBelvidere runs about 171 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
MeasuredBelvidere sits in USDA hardiness zone 5a.
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 Belvidere is in
Belvidere sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Belvidere's own centroid rather than borrowed from Jackson County.
What Grows in Belvidere
Every plant below cleared Belvidere's own zone 5a and its 171-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Belvidere?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 30; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 15 — 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 Belvidere
Closest first, within ~10 miles of Belvidere. Listing isn't leaking, and distance isn't exposure.
- JR'S C-STOREUnderground Storage Tanks · 0.5 mi
- DAKOTA TRAIL GAS MARTUnderground Storage Tanks · 0.6 mi
- E-4Underground Storage Tanks · 4.0 mi
- E-3Underground Storage Tanks · 5.1 mi
- 44N33W33BDNitrate · 6.0 mi
- 1880 TOWNUnderground Storage Tanks · 7.3 mi
- 43N34W 9ACNitrate · 9.3 mi
- SCHNEE DAIRY INCUnderground Storage Tanks · 9.4 mi
- E-5Underground Storage Tanks · 9.6 mi
Measured from Belvidere'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 Belvidere.
Severity Distribution
within ~10 miles of Belvidere
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Belvidere
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 Belvidere average
Your land is one point inside Belvidere
Everything above resolves to Belvidere as a whole — one PHZM band and one 28°F frost record, read across 486 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 town 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 Belvidere Average
Belvidere Average
- ●USDA Zones 5a, averaged across Belvidere
- ●One soil character for all of Belvidere
- ●Frost dates read at Belvidere's scale: Apr 27 to Oct 15
YOUR Parcel
- ✓Your exact zone, not Belvidere's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Belvidere
Pull a site-specific report for your exact address in Belvidere, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Belvidere averages can't show:
We read public map data around Belvidere — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Belvidere average
How we know this about Belvidere
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Belvidere’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 town grain anywhere on this page — there is no town-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 Belvidere
When does frost risk typically end in Belvidere?
The last hard freeze (28°F) in Belvidere typically lands around Apr 27, 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 18.
When is the first frost in Belvidere?
The first hard freeze (28°F) in Belvidere typically arrives around Oct 15, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 1, so the watching starts about Sep 15 — about 171 days after the spring freeze cleared.
How long is the growing season in Belvidere?
Measured between 28°F hard freezes, Belvidere sees about 171 frost-free days — roughly Apr 27 through Oct 15, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 18 to Oct 1, about 136 days.
Is the soil safe to grow vegetables in Belvidere?
The federal record around Belvidere is light — 11 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (7), the nearest Underground Storage Tanks record about 0.5 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Belvidere?
From about Sep 15 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 15 (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 15. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Belvidere's scale — its 5a band and its 171-day season. Your yard writes its own version of Belvidere'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 Belvidere’s own scale
6 of the readings below were taken at Belvidere's own scale — its own ~171-day season between 28°F freezes, the 486 acres it covers and 11 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Belvidere's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Belvidere's own 28°F hard-freeze dates, about Apr 27 and Oct 15 and the ~171-day span between themNOAA 1991–2020 Climate Normals
- 11 documented contamination sites on the federal record near Belvidere, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Belvidere's boundary and the 486 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~171-day seasonGrowable Ground crop-matching engine
- The ecoregion at Belvidere's own centroid, the Northwestern Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Belvidere's 486 acres read through its county's SSURGO summaryfrom Jackson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jackson 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 Jackson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Belvidere's 486 acreswhy one lot differs from the next →
- Which side of Belvidere you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 486 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Belvidere-wide figureread your own land →
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