Twin Lake, 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.
Among the crops suited to this profile: cabbage, blackberry, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Twin Lake, 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 Twin Lake 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 Twin Lake — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Twin Lake — the short answer
Twin Lake, Michigan: USDA zone 6a, about 179 days between hard freezes, across 2K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~179
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Twin Lake's average, not your lot's — a low corner or a tree line moves it. Against Twin Lake's 179-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Twin Lake
Each reading below is measured for Twin Lake itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTwin Lake runs about 179 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
MeasuredTwin Lake 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 Twin Lake is in
Twin Lake sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Twin Lake's own centroid rather than borrowed from Muskegon County.
What Grows in Twin Lake
Every plant below cleared Twin Lake's own zone 6a and its 179-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Twin Lake?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 31; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 28 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 24 — 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 Twin Lake
Closest first, within ~10 miles of Twin Lake. Listing isn't leaking, and distance isn't exposure.
- Twin Lake Mobil Kwik StopUnderground Storage Tanks · 1.0 mi
- MD AUTO SALESBrownfields · 1.1 mi
- Miracle Gas StationUnderground Storage Tanks · 1.1 mi
- Twin Lake - JH Family StoreUnderground Storage Tanks · 1.2 mi
- FAMILY DOLLAR STORESBrownfields · 1.3 mi
- MCRC Twin Lake GarageUnderground Storage Tanks · 1.4 mi
- Jacks Quick Stop IIIUnderground Storage Tanks · 1.5 mi
- MARKS AUTO REPAIRBrownfields · 2.0 mi
- Dalton TwpUnderground Storage Tanks · 2.2 mi
- MI DEPT TRANSPORTATION - (S08-61075)Brownfields · 2.3 mi
- K StopUnderground Storage Tanks · 2.7 mi
- MCCORMICK SAND INCToxics Release Inventory · 2.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Twin Lake'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 Twin Lake.
Sources Checked
within ~10 miles of Twin Lake
Severity Distribution
within ~10 miles of Twin Lake
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Twin Lake, two things run higher than the national average within ~10 miles of Twin Lake — PFAS (5 sites) and Superfund (7 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Twin Lake
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 Twin Lake average
Your land is one point inside Twin Lake
Everything above resolves to Twin Lake as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Twin Lake Average
Twin Lake Average
- ●USDA Zones 6a, averaged across Twin Lake
- ●One soil character for all of Twin Lake
- ●Frost dates read at Twin Lake's scale: Apr 28 to Oct 24
YOUR Parcel
- ✓Your exact zone, not Twin Lake's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Twin Lake
Pull a site-specific report for your exact address in Twin Lake, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Twin Lake averages can't show:
We read public map data around Twin Lake — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Twin Lake average
How we know this about Twin Lake
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 Twin Lake’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 Twin Lake
When does frost risk typically end in Twin Lake?
The last hard freeze (28°F) in Twin Lake typically lands around Apr 28, 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 19.
When is the first frost in Twin Lake?
The first hard freeze (28°F) in Twin Lake typically arrives around Oct 24, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 10, so the watching starts about Sep 24 — about 179 days after the spring freeze cleared.
How long is the growing season in Twin Lake?
Measured between 28°F hard freezes, Twin Lake sees about 179 frost-free days — roughly Apr 28 through Oct 24, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 19 to Oct 10, about 144 days.
Is the soil safe to grow vegetables in Twin Lake?
The federal record around Twin Lake runs heavier than most — 372 documented sites, mostly Underground Storage Tanks entries (199), the nearest Underground Storage Tanks record about 1.0 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Twin Lake?
From about Sep 24 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 24 (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 24. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Twin Lake's scale — its 6a band and its 179-day season. Your yard writes its own version of Twin Lake'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 Twin Lake’s own scale
6 of the readings below were taken at Twin Lake's own scale — its own ~179-day season between 28°F freezes, the 1,841 acres it covers and 372 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Twin Lake's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Twin Lake's own 28°F hard-freeze dates, about Apr 28 and Oct 24 and the ~179-day span between themNOAA 1991–2020 Climate Normals
- 372 documented contamination sites on the federal record near Twin Lake, the closest Underground Storage Tanks record about 1.0 miles out from the town centreFederal environmental registers
- Twin Lake's boundary and the 1,841 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~179-day seasonGrowable Ground crop-matching engine
- The ecoregion at Twin Lake's own centroid, the Southern Michigan/Northern Indiana Drift PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Twin Lake's 1,841 acres read through its county's SSURGO summaryfrom Muskegon County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Muskegon 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 Muskegon County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Twin Lake's 1,841 acreswhy one lot differs from the next →
- Which side of Twin Lake you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,841 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.0 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 Twin Lake-wide figureread your own land →