Kalkaska County, in Michigan, sits in USDA hardiness zone 5a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with cherry, blueberry, apple, and asparagus — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Kalkaska County holds more than one microclimate.
Soils and elevations shift across Kalkaska County, so your frost dates and drainage aren't the county average. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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Quick Facts
USDA Zones
5a
Last Hard Freeze (28°F)
Apr 22
County normal — light frosts run a few weeks later
First Hard Freeze (28°F)
Nov 3
County normal — light frosts arrive a few weeks earlier
County Area
358K acres
Hardiness Zone Range
Zone maps are averages across Kalkaska County. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.
Soil in Kalkaska County
Across Kalkaska County, the ground is predominantly Spodosols, where Islandlake, Rubicon, and Kalkaska are the most extensive named soil series. The soil is generally somewhat excessively drained with a sand surface. Topsoil pH runs about 4.8–5.3, very strongly acidic. Rainfall drains through hydrologic group A soils.
Soil order
Spodosols
Drainage
Somewhat excessively drained
Prime farmland
2%
Hydric soils
14%
Soil still varies lot by lot — soil types explained.
What Grows in Kalkaska County
Plants matched to Kalkaska County's USDA zones 5a — each links to its full growing profile.
Is it too late to plant in Kalkaska County?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
Growing Challenges in Michigan
What an experienced grower plans around here — each one has a move.
Lake effect weather creates highly localized microclimates
Lake effect rewrites the map mile by mile — check your exact site, not your region, before you commit a planting plan.
Short northern season (100-120 frost-free days in UP)
Up north, fast-maturing varieties plus a hoop house or cold frame turn a tight season into a dependable one.
Sandy soils in western MI drain too quickly
Compost and cover crops, applied annually, teach sandy ground to hold water — the west-side fix is organic matter.
For cultivar selection, pest pressure, and planting-time guidance specific to Michigan, the MSU Extension is the authoritative local source.
Safe to Grow Here?
What the federal record shows across Kalkaska County — and how to grow with it.
We checked the federal record across Kalkaska County — 171 documented sites across 4 of the 9 source types we track.
The most significant on record: 3 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
The federal record across Kalkaska County is a modest one — a typical footprint for a growing area. Nothing here calls for alarm; it's worth knowing which recorded sites sit closest to where you grow, and each one on the map carries its type and location. If one turns out to be a near neighbor, a one-time soil test settles the question.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Environmental Intelligence
Understanding what's nearby helps you make informed decisions about where and how to grow.
Total Sites
171
across Kalkaska County
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
across Kalkaska County
Severity Distribution
across Kalkaska County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Kalkaska County, Underground Storage Tanks runs higher than the national average — 106 sites nearby. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Kalkaska County
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Your Specific Parcel Matters
Kalkaska County Average
- ●USDA Zones 5a
- ●Generic soil type for the area
- ●State-average frost dates
YOUR Parcel
- ✓Your exact hardiness zone
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Kalkaska County
Pull a site-specific report for your exact address in Kalkaska County, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Key Growing Facts for Kalkaska County, Michigan
- USDA Hardiness Zones: 5a (USDA PHZM 2023)
- Last Hard Freeze (28°F): Apr 22 (county normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
- First Hard Freeze (28°F): Nov 3 (county normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
- Days Between Hard Freezes: ~195 (county normal, NOAA 1991–2020 Climate Normals)
- County Land Area: 358K acres (US Census TIGER 2025)
Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. County boundaries: US Census TIGER/Line 2025.
Frost dates here are the Kalkaska County average. Low spots and tree cover move them by days on any one yard — see your exact frost windows.
Frequently Asked Questions
What hardiness zone is Kalkaska County, Michigan?
Kalkaska County sits in USDA hardiness zone 5a, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
Is it too late to plant in Kalkaska County?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
When does frost risk typically end in Kalkaska County?
The last hard freeze (28°F) in Kalkaska County typically lands around Apr 22, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
How long is the growing season in Kalkaska County?
Measured between 28°F hard freezes, Kalkaska County sees about 195 frost-free days — roughly Apr 22 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.
What vegetables grow in Kalkaska County?
Kalkaska County's zone 5a supports a wide range — strong performers include Cherry, Blueberry, Apple, Asparagus, and White Pine. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.
Which hardiness zone is Kalkaska County, really?
Officially, Kalkaska County sits in USDA zone 5a (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.
Is the soil safe to grow vegetables in Kalkaska County?
The federal record around Kalkaska County shows 171 documented sites — 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.
Just moved to Kalkaska County — what should I know before planting?
Start with three facts. Kalkaska County sits in USDA zone 5a, which sets what survives winter; the last 28°F hard freeze typically clears around Apr 22, with about 195 frost-free days to work with (NOAA 1991–2020 climate normals); and 171 documented sites sit on the federal record — a typical footprint for a growing area, worth a look on the contamination map before food beds. From there, matching plants to your actual soil and sun is the fun part.
Everything on this page is a Kalkaska County average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Michigan's frost window, season length, and soil profile against the plant's real requirements.