Grayling, Michigan, sits in USDA hardiness zone 5a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Among the crops suited to this profile: cabbage, cranberry, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Grayling, 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 Grayling 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 Grayling — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Grayling — the short answer
Grayling, Michigan: USDA zone 5a, about 145 days between hard freezes, across 1K acres of city.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 15
- 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
- ~145
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 1K 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 5a is Grayling's average, not your lot's — a low corner or a tree line moves it. Against Grayling's 145-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Grayling
Each reading below is measured for Grayling itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGrayling runs about 145 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
MeasuredGrayling sits in USDA hardiness zone 5a.
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 Grayling is in
Grayling sits in the Northern Lakes and Forests — EPA Level III, inside the wider Northern Forests. That is read at Grayling's own centroid rather than borrowed from Crawford County.
What Grows in Grayling
Every plant below cleared Grayling's own zone 5a and its 145-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Grayling?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Apr 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 15 (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 Grayling
Closest first, within ~10 miles of Grayling. Listing isn't leaking, and distance isn't exposure.
- FEENY FORDBrownfields · 150 ft
- Scrubboard LaundromatUnderground Storage Tanks · 200 ft
- SCRUB BOARD LAUNDRY AND DRY CLEANERSBrownfields · 200 ft
- Grayling Imperial #14Underground Storage Tanks · 200 ft
- Grayling Fire StationUnderground Storage Tanks · 200 ft
- SPEEDWAY LLCBrownfields · 450 ft
- Speedway #8769Underground Storage Tanks · 500 ft
- Southend SunocoUnderground Storage Tanks · 500 ft
- Northern ServiceUnderground Storage Tanks · 500 ft
- MI DEPT/TRANSPORTATION BRIDGE (S04/S05-20015)Brownfields · 750 ft
- Crawford County Rd. CommissionUnderground Storage Tanks · 750 ft
- MI DEPT/TRANSPORTATIONBrownfields · 750 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Grayling'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 Grayling.
Total Sites
144
within ~10 miles of Grayling
Risk Level
Moderate
Highest-severity
9 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Grayling
Severity Distribution
within ~10 miles of Grayling
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Grayling, Toxics Release Inventory runs higher than the national average — 9 sites within ~10 miles of Grayling. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Grayling
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 Grayling average
Your land is one point inside Grayling
Everything above resolves to Grayling as a whole — one PHZM band and one 28°F frost record, read across 1K 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 city 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 Grayling Average
Grayling Average
- ●USDA Zones 5a, averaged across Grayling
- ●One soil character for all of Grayling
- ●Frost dates read at Grayling's scale: May 15 to Oct 7
YOUR Parcel
- ✓Your exact zone, not Grayling's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Grayling
Pull a site-specific report for your exact address in Grayling, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Grayling averages can't show:
We read public map data around Grayling — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Grayling average
How we know this about Grayling
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Grayling’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 city grain anywhere on this page — there is no city-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 Grayling
When does frost risk typically end in Grayling?
The last hard freeze (28°F) in Grayling typically lands around May 15, 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 5.
When is the first frost in Grayling?
The first hard freeze (28°F) in Grayling 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 145 days after the spring freeze cleared.
How long is the growing season in Grayling?
Measured between 28°F hard freezes, Grayling sees about 145 frost-free days — roughly May 15 through Oct 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 5 to Sep 23, about 110 days.
Is the soil safe to grow vegetables in Grayling?
The federal record around Grayling shows 144 documented sites, mostly Underground Storage Tanks entries (78), the nearest Brownfields record under a tenth of a mile out — 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.
How do gardeners stretch the season in Grayling?
With about 145 frost-free days between hard freezes, Grayling 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 173 to 201 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 15 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Grayling's scale — its 5a band and its 145-day season. Your yard writes its own version of Grayling'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 Grayling’s own scale
6 of the readings below were taken at Grayling's own scale — its own ~145-day season between 28°F freezes, the 1,312 acres it covers and 144 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Grayling's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Grayling's own 28°F hard-freeze dates, about May 15 and Oct 7 and the ~145-day span between themNOAA 1991–2020 Climate Normals
- 144 documented contamination sites on the federal record near Grayling, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Grayling's boundary and the 1,312 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~145-day seasonGrowable Ground crop-matching engine
- The ecoregion at Grayling'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 Grayling's 1,312 acres read through its county's SSURGO summaryfrom Crawford County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Crawford 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 Crawford County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Grayling's 1,312 acreswhy one lot differs from the next →
- Which side of Grayling you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,312 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Grayling-wide figureread your own land →