Millerdale 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.
These conditions suit cabbage, cranberry, turkish rocket, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Millerdale 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 Millerdale 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 Millerdale Colony — soil, climate, flood, and parcel records. How we handle your address.
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Millerdale Colony — the short answer
Millerdale Colony, South Dakota: USDA zone 4b, about 161 days between hard freezes, across 164 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 1
- 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
- ~161
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 164 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 Millerdale Colony's average, not your lot's — a low corner or a tree line moves it. Against Millerdale Colony's 161-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Millerdale Colony
Each reading below is measured for Millerdale Colony itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMillerdale Colony runs about 161 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
MeasuredMillerdale 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 Millerdale Colony is in
Millerdale Colony sits in the Northwestern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Millerdale Colony's own centroid, and it is not what its county reads: Hand County is mostly Northern Glaciated Plains. The wider page above you is answering a different question about different ground.
What Grows in Millerdale Colony
Every plant below cleared Millerdale Colony's own zone 4b and its 161-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Millerdale Colony?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Apr 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 1 (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. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Millerdale Colony
Closest first, within ~10 miles of Millerdale Colony. Listing isn't leaking, and distance isn't exposure.
- PUGH BROSUnderground Storage Tanks · 4.9 mi
- 111N68W 6AAANitrate · 5.0 mi
- REX COLLINS #1Underground Storage Tanks · 5.4 mi
- HIWAY STOREUnderground Storage Tanks · 7.9 mi
- 112N68W26CCCNitrate · 8.2 mi
- 110N70W 5CDAANitrate · 8.7 mi
- REE HEIGHTS REPAIRUnderground Storage Tanks · 9.4 mi
Measured from Millerdale 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 Millerdale Colony.
Total Sites
10
within ~10 miles of Millerdale Colony
Risk Level
Low
Highest-severity
6 nitrate monitoring sites
Severity Distribution
within ~10 miles of Millerdale Colony
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
Check your specific parcel in Millerdale 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 Millerdale Colony average
Your land is one point inside Millerdale Colony
Everything above resolves to Millerdale Colony as a whole — one PHZM band and one 28°F frost record, read across 164 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 Millerdale Colony Average
Millerdale Colony Average
- ●USDA Zones 4b, averaged across Millerdale Colony
- ●One soil character for all of Millerdale Colony
- ●Frost dates read at Millerdale Colony's scale: May 1 to Oct 9
YOUR Parcel
- ✓Your exact zone, not Millerdale Colony's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Millerdale Colony
Pull a site-specific report for your exact address in Millerdale Colony, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Millerdale Colony averages can't show:
We read public map data around Millerdale Colony — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Millerdale Colony average
How we know this about Millerdale 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 Millerdale 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 Millerdale Colony
When does frost risk typically end in Millerdale Colony?
The last hard freeze (28°F) in Millerdale Colony typically lands around May 1, 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 22.
When is the first frost in Millerdale Colony?
The first hard freeze (28°F) in Millerdale Colony 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 161 days after the spring freeze cleared.
How long is the growing season in Millerdale Colony?
Measured between 28°F hard freezes, Millerdale Colony sees about 161 frost-free days — roughly May 1 through Oct 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 22 to Sep 25, about 126 days.
Is the soil safe to grow vegetables in Millerdale Colony?
The federal record around Millerdale Colony is light — 10 documented sites across the 9 federal source types we checked, mostly Nitrate entries (6), the nearest Underground Storage Tanks record about 4.9 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 Millerdale Colony?
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 Millerdale Colony's scale — its 4b band and its 161-day season. Your yard writes its own version of Millerdale 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 Millerdale Colony’s own scale
6 of the readings below were taken at Millerdale Colony's own scale — its own ~161-day season between 28°F freezes, the 164 acres it covers and 10 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Millerdale Colony's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Millerdale Colony's own 28°F hard-freeze dates, about May 1 and Oct 9 and the ~161-day span between themNOAA 1991–2020 Climate Normals
- 10 documented contamination sites on the federal record near Millerdale Colony, the closest Underground Storage Tanks record about 4.9 miles out from the town centreFederal environmental registers
- Millerdale Colony's boundary and the 164 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~161-day seasonGrowable Ground crop-matching engine
- Millerdale Colony sits in the Northwestern 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 Millerdale Colony's 164 acres read through its county's SSURGO summaryfrom Hand County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hand 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 Hand County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Millerdale Colony's 164 acreswhy one lot differs from the next →
- Which side of Millerdale 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 164 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 4.9 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 Millerdale Colony-wide figureread your own land →
More in South Dakota
Wider growing context
What grows across South DakotaMillerdale Colony sits outside our named growing regions, so South Dakota as a whole is its closest context here.
Nearby growing guides