Oscoda, Michigan, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
These conditions suit cabbage, hazelnut, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Oscoda, 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 Oscoda 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 Oscoda — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Oscoda — the short answer
Oscoda, Michigan: USDA zone 6a, about 187 days between hard freezes, across 557 acres of town.
- USDA zone
- 6a
- 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 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~187
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 557 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 6a is Oscoda's average, not your lot's — a low corner or a tree line moves it. Against Oscoda's 187-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oscoda
Each reading below is measured for Oscoda itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredOscoda runs about 187 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
MeasuredOscoda sits in USDA hardiness zone 6a.
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 Oscoda is in
Oscoda sits in the Northern Lakes and Forests — EPA Level III, inside the wider Northern Forests. That is read at Oscoda's own centroid rather than borrowed from Iosco County.
What Grows in Oscoda
Every plant below cleared Oscoda's own zone 6a and its 187-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Oscoda?
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 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 29 — 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 Oscoda
Closest first, within ~10 miles of Oscoda. Listing isn't leaking, and distance isn't exposure.
- Admiral Petroleum II LLC #150Underground Storage Tanks · 500 ft
- Ceder Lk ElUnderground Storage Tanks · 700 ft
- Speedway SuperAmerica LLC #8816Underground Storage Tanks · 1100 ft
- MICHIGAN BELL TELEPHONEBrownfields · 1300 ft
- Oscoda Twp HallUnderground Storage Tanks · 1500 ft
- Don Jordan Real EstateUnderground Storage Tanks · 1500 ft
- BarbiersUnderground Storage Tanks · 1800 ft
- Juniors Discount Tire IncUnderground Storage Tanks · 1800 ft
- Gary Oil Co IncUnderground Storage Tanks · 1900 ft
- Oscoda MarathonUnderground Storage Tanks · 2100 ft
- BUBLITZ OIL COBrownfields · 2100 ft
- Bublitz Full-service-oscodaUnderground Storage Tanks · 2100 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Oscoda'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 Oscoda.
Sources Checked
within ~10 miles of Oscoda
Severity Distribution
within ~10 miles of Oscoda
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oscoda, Nitrate runs higher than the national average — 50 sites within ~10 miles of Oscoda. 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 Oscoda
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 Oscoda average
Your land is one point inside Oscoda
Everything above resolves to Oscoda as a whole — one PHZM band and one 28°F frost record, read across 557 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 Oscoda Average
Oscoda Average
- ●USDA Zones 6a, averaged across Oscoda
- ●One soil character for all of Oscoda
- ●Frost dates read at Oscoda's scale: Apr 25 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Oscoda's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oscoda
Pull a site-specific report for your exact address in Oscoda, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oscoda averages can't show:
We read public map data around Oscoda — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oscoda average
How we know this about Oscoda
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 Oscoda’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 Oscoda
When does frost risk typically end in Oscoda?
The last hard freeze (28°F) in Oscoda 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 Oscoda?
The first hard freeze (28°F) in Oscoda typically arrives around Oct 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 15, so the watching starts about Sep 29 — about 187 days after the spring freeze cleared.
How long is the growing season in Oscoda?
Measured between 28°F hard freezes, Oscoda sees about 187 frost-free days — roughly Apr 25 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 16 to Oct 15, about 152 days.
Is the soil safe to grow vegetables in Oscoda?
The federal record around Oscoda is a meaningful one — 141 documented sites, mostly Nitrate entries (50), the nearest Underground Storage Tanks 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 Oscoda?
From about Sep 29 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oscoda's scale — its 6a band and its 187-day season. Your yard writes its own version of Oscoda'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 Oscoda’s own scale
6 of the readings below were taken at Oscoda's own scale — its own ~187-day season between 28°F freezes, the 557 acres it covers and 141 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Oscoda's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Oscoda's own 28°F hard-freeze dates, about Apr 25 and Oct 29 and the ~187-day span between themNOAA 1991–2020 Climate Normals
- 141 documented contamination sites on the federal record near Oscoda, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Oscoda's boundary and the 557 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~187-day seasonGrowable Ground crop-matching engine
- The ecoregion at Oscoda's own centroid, the Northern Lakes and ForestsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Oscoda's 557 acres read through its county's SSURGO summaryfrom Iosco County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Iosco County
- The growing challenges every Michigan grower plans around — written at state scale, so they stay on the state guidefrom Michigan
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Iosco County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oscoda's 557 acreswhy one lot differs from the next →
- Which side of Oscoda you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 557 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Oscoda-wide figureread your own land →
More in Michigan
Wider growing context
What grows across MichiganOscoda sits outside our named growing regions, so Michigan as a whole is its closest context here.
Nearby growing guides