Spring Lake Colony, South Dakota, sits in USDA hardiness zone 4b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
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 Spring Lake Colony, 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 Spring Lake Colony 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 Spring Lake Colony — soil, climate, flood, and parcel records. How we handle your address.
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Spring Lake Colony — the short answer
Spring Lake Colony, South Dakota: USDA zone 4b, about 174 days between hard freezes, across 182 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~174
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 182 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 Spring Lake Colony's average, not your lot's — a low corner or a tree line moves it. Against Spring Lake Colony's 174-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Spring Lake Colony
Each reading below is measured for Spring Lake Colony itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSpring Lake Colony runs about 174 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
MeasuredSpring Lake Colony 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 Spring Lake Colony is in
Spring Lake Colony sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Spring Lake Colony's own centroid rather than borrowed from Kingsbury County.
What Grows in Spring Lake Colony
Every plant below cleared Spring Lake Colony's own zone 4b and its 174-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Spring Lake Colony?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 13 — 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 Spring Lake Colony
Closest first, within ~10 miles of Spring Lake Colony. Listing isn't leaking, and distance isn't exposure.
- 121N51W29BBBB RNitrate · 4.6 mi
- 109N52W14Nitrate · 5.9 mi
- 109N54W22CCCCNitrate · 6.6 mi
- 109N54W22CCDB (2)Nitrate · 6.6 mi
- SINAI LIVE BAITUnderground Storage Tanks · 6.7 mi
- 109N54W22CCDDNitrate · 6.7 mi
- OLDHAM SERVICES INCUnderground Storage Tanks · 6.7 mi
- ARLINGTON SITE, (MIDCO #37)Underground Storage Tanks · 7.4 mi
- 109N52W35DDCNitrate · 7.5 mi
- 109N52W35DDCDNitrate · 7.6 mi
- 108N53W32ABDBNitrate · 8.1 mi
- 108N53W32ABCDNitrate · 8.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Spring Lake Colony'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 Spring Lake Colony.
Total Sites
50
within ~10 miles of Spring Lake Colony
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Spring Lake Colony
Severity Distribution
within ~10 miles of Spring Lake Colony
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Spring Lake Colony, Nitrate runs higher than the national average — 30 sites within ~10 miles of Spring Lake Colony. 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 Spring Lake Colony
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 Spring Lake Colony average
Your land is one point inside Spring Lake Colony
Everything above resolves to Spring Lake Colony as a whole — one PHZM band and one 28°F frost record, read across 182 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 Spring Lake Colony Average
Spring Lake Colony Average
- ●USDA Zones 4b, averaged across Spring Lake Colony
- ●One soil character for all of Spring Lake Colony
- ●Frost dates read at Spring Lake Colony's scale: Apr 22 to Oct 13
YOUR Parcel
- ✓Your exact zone, not Spring Lake Colony's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Spring Lake Colony
Pull a site-specific report for your exact address in Spring Lake Colony, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Spring Lake Colony averages can't show:
We read public map data around Spring Lake Colony — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Spring Lake Colony average
How we know this about Spring Lake Colony
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 Spring Lake Colony’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 Spring Lake Colony
When does frost risk typically end in Spring Lake Colony?
The last hard freeze (28°F) in Spring Lake Colony typically lands around Apr 22, 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 13.
When is the first frost in Spring Lake Colony?
The first hard freeze (28°F) in Spring Lake Colony typically arrives around Oct 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 29, so the watching starts about Sep 13 — about 174 days after the spring freeze cleared.
How long is the growing season in Spring Lake Colony?
Measured between 28°F hard freezes, Spring Lake Colony sees about 174 frost-free days — roughly Apr 22 through Oct 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 13 to Sep 29, about 139 days.
Is the soil safe to grow vegetables in Spring Lake Colony?
The federal record around Spring Lake Colony shows 50 documented sites, mostly Nitrate entries (30), the nearest Nitrate record about 4.6 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 Spring Lake Colony?
From about Sep 13 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 13 (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 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Spring Lake Colony's scale — its 4b band and its 174-day season. Your yard writes its own version of Spring Lake Colony'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 Spring Lake Colony’s own scale
6 of the readings below were taken at Spring Lake Colony's own scale — its own ~174-day season between 28°F freezes, the 182 acres it covers and 50 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Spring Lake Colony's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Spring Lake Colony's own 28°F hard-freeze dates, about Apr 22 and Oct 13 and the ~174-day span between themNOAA 1991–2020 Climate Normals
- 50 documented contamination sites on the federal record near Spring Lake Colony, the closest Nitrate record about 4.6 miles out from the town centreFederal environmental registers
- Spring Lake Colony's boundary and the 182 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~174-day seasonGrowable Ground crop-matching engine
- The ecoregion at Spring Lake Colony's own centroid, the Northern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Spring Lake Colony's 182 acres read through its county's SSURGO summaryfrom Kingsbury County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kingsbury 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 Kingsbury County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Spring Lake Colony's 182 acreswhy one lot differs from the next →
- Which side of Spring Lake Colony you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 182 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 4.6 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 Spring Lake Colony-wide figureread your own land →
More in South Dakota
Wider growing context
What grows across South DakotaSpring Lake Colony sits outside our named growing regions, so South Dakota as a whole is its closest context here.