Allendale, Michigan, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Expect cabbage, hazelnut, lavender, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Allendale, 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 Allendale 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 Allendale — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Allendale — the short answer
Allendale, Michigan: USDA zone 6a, about 192 days between hard freezes, across 15K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 15K 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 Allendale's average, not your lot's — a low corner or a tree line moves it. Against Allendale's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Allendale
Each reading below is measured for Allendale itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAllendale runs about 192 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
MeasuredAllendale 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 Allendale is in
Allendale sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Allendale's own centroid rather than borrowed from Ottawa County.
What Grows in Allendale
Every plant below cleared Allendale's own zone 6a and its 192-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Allendale?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
Documented around Allendale
Survey cells within 31 miles of Allendale checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 71 miles off. What to watch for.
What's on the federal record near Allendale
Closest first, within ~10 miles of Allendale. Listing isn't leaking, and distance isn't exposure.
- A. Gemmen & Sons, IncUnderground Storage Tanks · 0.7 mi
- SPARTAN STORES FUEL LLCBrownfields · 0.7 mi
- Family Fare Quick Stop #852Underground Storage Tanks · 0.7 mi
- Allendale Public SchoolUnderground Storage Tanks · 0.7 mi
- Allendale Mobil MartUnderground Storage Tanks · 0.7 mi
- West Shore Services IncUnderground Storage Tanks · 0.7 mi
- METRO HEALTH ENTERPRISEBrownfields · 0.8 mi
- Walcott ElevatorUnderground Storage Tanks · 0.8 mi
- Alandale TwpUnderground Storage Tanks · 0.8 mi
- ALLENDALE TOWNSHIPPFAS · 0.8 mi
- Admiral Petroleum Co #17Underground Storage Tanks · 0.8 mi
- Ensing Auto ServiceUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Allendale'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 Allendale.
Total Sites
439
within ~10 miles of Allendale
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Allendale
Severity Distribution
within ~10 miles of Allendale
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Allendale, PFAS runs higher than the national average — 6 sites within ~10 miles of Allendale. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Allendale
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 Allendale average
Your land is one point inside Allendale
Everything above resolves to Allendale as a whole — one PHZM band and one 28°F frost record, read across 15K 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 Allendale Average
Allendale Average
- ●USDA Zones 6a, averaged across Allendale
- ●One soil character for all of Allendale
- ●Frost dates read at Allendale's scale: Apr 21 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Allendale's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Allendale
Pull a site-specific report for your exact address in Allendale, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Allendale averages can't show:
We read public map data around Allendale — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Allendale average
How we know this about Allendale
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 Allendale’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 Allendale
When does frost risk typically end in Allendale?
The last hard freeze (28°F) in Allendale typically lands around Apr 21, 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 12.
When is the first frost in Allendale?
The first hard freeze (28°F) in Allendale typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 192 days after the spring freeze cleared.
How long is the growing season in Allendale?
Measured between 28°F hard freezes, Allendale sees about 192 frost-free days — roughly Apr 21 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 12 to Oct 16, about 157 days.
Is the soil safe to grow vegetables in Allendale?
The federal record around Allendale is a meaningful one — 439 documented sites, mostly Brownfields entries (210), the nearest Underground Storage Tanks record about 0.7 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 I protect my plants from frost in Allendale?
From about Sep 30 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Allendale's scale — its 6a band and its 192-day season. Your yard writes its own version of Allendale'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 Allendale’s own scale
7 of the readings below were taken at Allendale's own scale — its own ~192-day season between 28°F freezes, the 14,870 acres it covers and 439 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Allendale's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Allendale's own 28°F hard-freeze dates, about Apr 21 and Oct 30 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 439 documented contamination sites on the federal record near Allendale, the closest Underground Storage Tanks record about 0.7 miles out from the town centreFederal environmental registers
- Allendale's boundary and the 14,870 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~192-day seasonGrowable Ground crop-matching engine
- The ecoregion at Allendale's own centroid, the Southern Michigan/Northern Indiana Drift PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Allendale checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Allendale's 14,870 acres read through its county's SSURGO summaryfrom Ottawa County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Ottawa 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 Ottawa County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Allendale's 14,870 acreswhy one lot differs from the next →
- Which side of Allendale you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 14,870 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.7 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 Allendale-wide figureread your own land →
More in Michigan
Growing region
Nearby growing guides