South Shore, South Dakota, sits in USDA hardiness zone 4b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include cabbage, cranberry, turkish rocket, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in South Shore, 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 South Shore 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 South Shore — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
South Shore — the short answer
South Shore, South Dakota: USDA zone 4b, about 166 days between hard freezes, across 894 acres of town.
- USDA zone
- 4b
- 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 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~166
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 894 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 South Shore's average, not your lot's — a low corner or a tree line moves it. Against South Shore's 166-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in South Shore
Each reading below is measured for South Shore itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSouth Shore 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
MeasuredSouth Shore 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 South Shore is in
South Shore sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at South Shore's own centroid rather than borrowed from Codington County.
What Grows in South Shore
Every plant below cleared South Shore'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 South Shore?
Almost never — the real question is what to plant next. 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 10 — 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 South Shore
Closest first, within ~10 miles of South Shore. Listing isn't leaking, and distance isn't exposure.
- MEYER'S SERVICEUnderground Storage Tanks · 1500 ft
- KOLLS SERVICEUnderground Storage Tanks · 1500 ft
- 119N51W 3DDDANitrate · 2.5 mi
- 120N51W34CCCCNitrate · 3.4 mi
- 119N51W31DDDDNitrate · 3.7 mi
- 119N52W13BBBB RNitrate · 4.9 mi
- 118N52W 1DCDCNitrate · 5.3 mi
- 120N51W28BAAANitrate · 5.5 mi
- 119N52W10ADDDNitrate · 6.0 mi
- EVJEN REPAIRUnderground Storage Tanks · 6.2 mi
- STOCKHOLM REFRIGERATION COUnderground Storage Tanks · 6.3 mi
- XCEL ENERGY - CROWNED RIDGE II WIND FARMBrownfields · 6.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from South Shore'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 South Shore.
Sources Checked
within ~10 miles of South Shore
Severity Distribution
within ~10 miles of South Shore
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around South Shore, Nitrate runs higher than the national average — 42 sites within ~10 miles of South Shore. 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 South Shore
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 South Shore average
Your land is one point inside South Shore
Everything above resolves to South Shore as a whole — one PHZM band and one 28°F frost record, read across 894 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 South Shore Average
South Shore Average
- ●USDA Zones 4b, averaged across South Shore
- ●One soil character for all of South Shore
- ●Frost dates read at South Shore's scale: Apr 27 to Oct 10
YOUR Parcel
- ✓Your exact zone, not South Shore's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in South Shore
Pull a site-specific report for your exact address in South Shore, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that South Shore averages can't show:
We read public map data around South Shore — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the South Shore average
How we know this about South Shore
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 South Shore’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 South Shore
When does frost risk typically end in South Shore?
The last hard freeze (28°F) in South Shore 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 South Shore?
The first hard freeze (28°F) in South Shore typically arrives around Oct 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 26, so the watching starts about Sep 10 — about 166 days after the spring freeze cleared.
How long is the growing season in South Shore?
Measured between 28°F hard freezes, South Shore sees about 166 frost-free days — roughly Apr 27 through Oct 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 18 to Sep 26, about 131 days.
Is the soil safe to grow vegetables in South Shore?
The federal record around South Shore shows 50 documented sites, mostly Nitrate entries (42), the nearest Underground Storage Tanks 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 South Shore?
From about Sep 10 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at South Shore's scale — its 4b band and its 166-day season. Your yard writes its own version of South Shore'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 South Shore’s own scale
6 of the readings below were taken at South Shore's own scale — its own ~166-day season between 28°F freezes, the 894 acres it covers and 50 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- South Shore's own USDA hardiness band, zones 4bUSDA PHZM 2023
- South Shore's own 28°F hard-freeze dates, about Apr 27 and Oct 10 and the ~166-day span between themNOAA 1991–2020 Climate Normals
- 50 documented contamination sites on the federal record near South Shore, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- South Shore's boundary and the 894 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 South Shore's own centroid, the Northern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so South Shore's 894 acres read through its county's SSURGO summaryfrom Codington County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Codington 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 Codington County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among South Shore's 894 acreswhy one lot differs from the next →
- Which side of South Shore you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 894 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 South Shore-wide figureread your own land →