Boston, Indiana, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Among the crops suited to this profile: cabbage, hazelnut, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Boston, 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 Boston 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 Boston — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Boston — the short answer
Boston, Indiana: USDA zone 6a, about 199 days between hard freezes, across 139 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~199
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 139 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 Boston's average, not your lot's — a low corner or a tree line moves it. Against Boston's 199-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Boston
Each reading below is measured for Boston itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBoston runs about 199 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
MeasuredBoston 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 Boston is in
Boston sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Boston's own centroid rather than borrowed from Wayne County.
What Grows in Boston
Every plant below cleared Boston's own zone 6a and its 199-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Boston?
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 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — 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.
Documented around Boston
Survey cells within 31 miles of Boston checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 41 miles off. What to watch for.
What's on the federal record near Boston
Closest first, within ~10 miles of Boston. Listing isn't leaking, and distance isn't exposure.
- BOSTON FIRE DEPARTMENTUnderground Storage Tanks · 150 ft
- GREENS MARATHON SERVICE STATIONUnderground Storage Tanks · 200 ft
- Cargill IncorporatedUnderground Storage Tanks · 1900 ft
- Crop Production ServicesUnderground Storage Tanks · 2200 ft
- Richmond Municipal AirportUnderground Storage Tanks · 1.0 mi
- BP SITE #09720Underground Storage Tanks · 3.9 mi
- EJ8 RCLRUnderground Storage Tanks · 4.0 mi
- Crop Production Services 548Underground Storage Tanks · 4.0 mi
- PR-202 MIAM NAWQA LUS WELL BVAS AG-7DNitrate · 4.1 mi
- BELDEN WIRE & CABLE COBrownfields · 4.4 mi
- BELDEN WIRE & CABLE COToxics Release Inventory · 4.4 mi
- POINT DEVELOPMENTUnderground Storage Tanks · 4.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Boston'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 Boston.
Total Sites
394
within ~10 miles of Boston
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Boston
Severity Distribution
within ~10 miles of Boston
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Boston, Toxics Release Inventory runs higher than the national average — 44 sites within ~10 miles of Boston. 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 Boston
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 Boston average
Your land is one point inside Boston
Everything above resolves to Boston as a whole — one PHZM band and one 28°F frost record, read across 139 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 Boston Average
Boston Average
- ●USDA Zones 6a, averaged across Boston
- ●One soil character for all of Boston
- ●Frost dates read at Boston's scale: Apr 11 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Boston's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Boston
Pull a site-specific report for your exact address in Boston, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Boston averages can't show:
We read public map data around Boston — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Boston average
How we know this about Boston
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 Boston’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 Boston
When does frost risk typically end in Boston?
The last hard freeze (28°F) in Boston typically lands around Apr 11, 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 2.
When is the first frost in Boston?
The first hard freeze (28°F) in Boston typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 199 days after the spring freeze cleared.
How long is the growing season in Boston?
Measured between 28°F hard freezes, Boston sees about 199 frost-free days — roughly Apr 11 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 2 to Oct 13, about 164 days.
Is the soil safe to grow vegetables in Boston?
The federal record around Boston is a meaningful one — 394 documented sites, mostly Underground Storage Tanks entries (229), 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 Boston?
From about Sep 27 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Boston's scale — its 6a band and its 199-day season. Your yard writes its own version of Boston'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 Boston’s own scale
7 of the readings below were taken at Boston's own scale — its own ~199-day season between 28°F freezes, the 139 acres it covers and 394 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Boston's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Boston's own 28°F hard-freeze dates, about Apr 11 and Oct 27 and the ~199-day span between themNOAA 1991–2020 Climate Normals
- 394 documented contamination sites on the federal record near Boston, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Boston's boundary and the 139 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~199-day seasonGrowable Ground crop-matching engine
- The ecoregion at Boston's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Boston 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 Boston's 139 acres read through its county's SSURGO summaryfrom Wayne County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wayne County
- The growing challenges every Indiana grower plans around — written at state scale, so they stay on the state guidefrom Indiana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Wayne County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Boston's 139 acreswhy one lot differs from the next →
- Which side of Boston you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 139 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 Boston-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaBoston sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides