Palmer, Michigan, sits in USDA hardiness zone 4b — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, cranberry, cilantro, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Palmer, 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 Palmer 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 Palmer — soil, climate, flood, and parcel records. How we handle your address.
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Palmer — the short answer
Palmer, Michigan: USDA zone 4b, about 140 days between hard freezes, across 380 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~140
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 380 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 Palmer's average, not your lot's — a low corner or a tree line moves it. Against Palmer's 140-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Palmer
Each reading below is measured for Palmer itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPalmer runs about 140 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredPalmer 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 Palmer is in
Palmer sits in the Northern Lakes and Forests — EPA Level III, inside the wider Northern Forests. That is read at Palmer's own centroid rather than borrowed from Marquette County.
What Grows in Palmer
Every plant below cleared Palmer's own zone 4b and its 140-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Palmer?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Apr 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 7 — long-season crops need about 90 days of runway, quick greens only 30. When the window is tight, the fall moves are quick ones — baby greens, radishes, and garlic set for next season.
What's on the federal record near Palmer
Closest first, within ~10 miles of Palmer. Listing isn't leaking, and distance isn't exposure.
- Handy GroceryUnderground Storage Tanks · 2200 ft
- 47N26W29BC 01 RICH. TWPNitrate · 2500 ft
- MI DEPT/TRANSPORTATIONBrownfields · 0.6 mi
- Frans ServiceUnderground Storage Tanks · 0.9 mi
- EMPIRE IRON MINING PARTNERSHIP (B1827)Brownfields · 1.1 mi
- Empire Mine -pit Truck GarageUnderground Storage Tanks · 1.2 mi
- Empire Iron Mining PartnershipUnderground Storage Tanks · 1.2 mi
- Empire Mine #3 Oil HouseUnderground Storage Tanks · 1.2 mi
- 47N 26W 28DA01 MARQUETTE CO (CCI BEDROCK)Nitrate · 1.4 mi
- NEGAUNEEPFAS · 1.9 mi
- 47N 26W 26CDCD01 MARQUETTE CO (CCI OW-7)Nitrate · 2.8 mi
- MARQUETTE DISTRICT OFFICEBrownfields · 3.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Palmer'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 Palmer.
Total Sites
309
within ~10 miles of Palmer
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Palmer
Severity Distribution
within ~10 miles of Palmer
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Palmer, Mining runs higher than the national average — 21 sites within ~10 miles of Palmer. That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Palmer
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 Palmer average
Your land is one point inside Palmer
Everything above resolves to Palmer as a whole — one PHZM band and one 28°F frost record, read across 380 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 Palmer Average
Palmer Average
- ●USDA Zones 4b, averaged across Palmer
- ●One soil character for all of Palmer
- ●Frost dates read at Palmer's scale: May 20 to Oct 7
YOUR Parcel
- ✓Your exact zone, not Palmer's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Palmer
Pull a site-specific report for your exact address in Palmer, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Palmer averages can't show:
We read public map data around Palmer — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Palmer average
How we know this about Palmer
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 Palmer’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 Palmer
When does frost risk typically end in Palmer?
The last hard freeze (28°F) in Palmer typically lands around May 20, 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 Jun 10.
When is the first frost in Palmer?
The first hard freeze (28°F) in Palmer typically arrives around Oct 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 23, so the watching starts about Sep 7 — about 140 days after the spring freeze cleared.
How long is the growing season in Palmer?
Measured between 28°F hard freezes, Palmer sees about 140 frost-free days — roughly May 20 through Oct 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 10 to Sep 23, about 105 days.
Is the soil safe to grow vegetables in Palmer?
The federal record around Palmer is a meaningful one — 309 documented sites, mostly Underground Storage Tanks entries (122), the nearest Underground Storage Tanks record about 0.4 miles 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 gardeners stretch the season in Palmer?
With about 140 frost-free days between hard freezes, Palmer rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 168 to 196 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 20 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Palmer's scale — its 4b band and its 140-day season. Your yard writes its own version of Palmer'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 Palmer’s own scale
6 of the readings below were taken at Palmer's own scale — its own ~140-day season between 28°F freezes, the 380 acres it covers and 309 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Palmer's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Palmer's own 28°F hard-freeze dates, about May 20 and Oct 7 and the ~140-day span between themNOAA 1991–2020 Climate Normals
- 309 documented contamination sites on the federal record near Palmer, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Palmer's boundary and the 380 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~140-day seasonGrowable Ground crop-matching engine
- The ecoregion at Palmer'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 Palmer's 380 acres read through its county's SSURGO summaryfrom Marquette County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Marquette 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 Marquette County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Palmer's 380 acreswhy one lot differs from the next →
- Which side of Palmer you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 380 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Palmer-wide figureread your own land →
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