Mechanic Falls, Maine, sits in USDA hardiness zone 5b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
A short list that earns its place here — cabbage, cranberry, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Mechanic Falls, 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 Mechanic Falls 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 Mechanic Falls — soil, climate, flood, and parcel records. How we handle your address.
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Mechanic Falls — the short answer
Mechanic Falls, Maine: USDA zone 5b, about 183 days between hard freezes, across 3K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~183
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 3K 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 5b is Mechanic Falls's average, not your lot's — a low corner or a tree line moves it. Against Mechanic Falls's 183-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mechanic Falls
Each reading below is measured for Mechanic Falls itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMechanic Falls runs about 183 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
MeasuredMechanic Falls sits in USDA hardiness zone 5b.
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 Mechanic Falls is in
Mechanic Falls sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Mechanic Falls's own centroid, and it is not what its county reads: Androscoggin County is mostly Acadian Plains and Hills. The wider page above you is answering a different question about different ground.
What Grows in Mechanic Falls
Every plant below cleared Mechanic Falls's own zone 5b and its 183-day season. Each card opens that plant's Maine profile. How we score.
Is it too late to plant in Mechanic Falls?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 19 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
Documented around Mechanic Falls
Survey cells within 31 miles of Mechanic Falls checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 34 miles off. What to watch for.
What's on the federal record near Mechanic Falls
Closest first, within ~10 miles of Mechanic Falls. Listing isn't leaking, and distance isn't exposure.
- SANDYS DISCOUNT GROCERYUnderground Storage Tanks · 100 ft
- C & C SVC STATIONUnderground Storage Tanks · 100 ft
- RE HEMOND FARM INCUnderground Storage Tanks · 100 ft
- DADS PLACEUnderground Storage Tanks · 250 ft
- CUMBERLAND FARMS 5598/1825Brownfields · 500 ft
- BRYANT ENERGY INCUnderground Storage Tanks · 1200 ft
- TIRE SHOP & GARAGEUnderground Storage Tanks · 2000 ft
- MECHANIC FALLS TEXACOUnderground Storage Tanks · 2200 ft
- CUMBERLAND FARMS INC 1825Underground Storage Tanks · 2300 ft
- A-1 AUTO BODYBrownfields · 0.6 mi
- MECHANIC FALLS TOWN OFUnderground Storage Tanks · 0.7 mi
- LUCKYS PLACEUnderground Storage Tanks · 1.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mechanic Falls'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 Mechanic Falls.
Total Sites
521
within ~10 miles of Mechanic Falls
Risk Level
Elevated
Highest-severity
6 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Mechanic Falls
Severity Distribution
within ~10 miles of Mechanic Falls
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Mechanic Falls
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 Mechanic Falls average
Your land is one point inside Mechanic Falls
Everything above resolves to Mechanic Falls as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Mechanic Falls Average
Mechanic Falls Average
- ●USDA Zones 5b, averaged across Mechanic Falls
- ●One soil character for all of Mechanic Falls
- ●Frost dates read at Mechanic Falls's scale: Apr 19 to Oct 19
YOUR Parcel
- ✓Your exact zone, not Mechanic Falls's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mechanic Falls
Pull a site-specific report for your exact address in Mechanic Falls, Maine — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mechanic Falls averages can't show:
We read public map data around Mechanic Falls — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mechanic Falls average
How we know this about Mechanic Falls
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 Mechanic Falls’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 Mechanic Falls
When does frost risk typically end in Mechanic Falls?
The last hard freeze (28°F) in Mechanic Falls typically lands around Apr 19, 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 10.
When is the first frost in Mechanic Falls?
The first hard freeze (28°F) in Mechanic Falls typically arrives around Oct 19, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 5, so the watching starts about Sep 19 — about 183 days after the spring freeze cleared.
How long is the growing season in Mechanic Falls?
Measured between 28°F hard freezes, Mechanic Falls sees about 183 frost-free days — roughly Apr 19 through Oct 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 10 to Oct 5, about 148 days.
Is the soil safe to grow vegetables in Mechanic Falls?
The federal record around Mechanic Falls is a meaningful one — 521 documented sites, mostly Underground Storage Tanks entries (317), the nearest Underground Storage Tanks record under a tenth of a mile 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 Mechanic Falls?
From about Sep 19 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 19 (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 19. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Mechanic Falls's scale — its 5b band and its 183-day season. Your yard writes its own version of Mechanic Falls'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 Mechanic Falls’s own scale
7 of the readings below were taken at Mechanic Falls's own scale — its own ~183-day season between 28°F freezes, the 3,420 acres it covers and 521 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Mechanic Falls's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Mechanic Falls's own 28°F hard-freeze dates, about Apr 19 and Oct 19 and the ~183-day span between themNOAA 1991–2020 Climate Normals
- 521 documented contamination sites on the federal record near Mechanic Falls, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Mechanic Falls's boundary and the 3,420 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~183-day seasonGrowable Ground crop-matching engine
- Mechanic Falls sits in the Northeastern Highlands — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Mechanic Falls 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 Mechanic Falls's 3,420 acres read through its county's SSURGO summaryfrom Androscoggin County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Androscoggin County
- The growing challenges every Maine grower plans around — written at state scale, so they stay on the state guidefrom Maine
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Androscoggin County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mechanic Falls's 3,420 acreswhy one lot differs from the next →
- Which side of Mechanic Falls you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,420 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Mechanic Falls-wide figureread your own land →
More in Maine
Wider growing context
What grows across MaineMechanic Falls sits outside our named growing regions, so Maine as a whole is its closest context here.
Nearby growing guides