Lyndon, Vermont, sits in USDA hardiness zone 4b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, cranberry, turkish rocket, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Lyndon, 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 Lyndon 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 Lyndon — soil, climate, flood, and parcel records. How we handle your address.
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Lyndon — the short answer
Lyndon, Vermont: USDA zone 4b, about 161 days between hard freezes, across 152 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~161
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 152 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 4b is Lyndon's average, not your lot's — a low corner or a tree line moves it. Against Lyndon's 161-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lyndon
Each reading below is measured for Lyndon itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLyndon runs about 161 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
MeasuredLyndon sits in USDA hardiness zone 4b.
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 Lyndon is in
Lyndon sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Lyndon's own centroid rather than borrowed from Caledonia County.
What Grows in Lyndon
Every plant below cleared Lyndon's own zone 4b and its 161-day season. Each card opens that plant's Vermont profile. How we score.
Is it too late to plant in Lyndon?
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 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 12 — 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 Lyndon
Survey cells within 31 miles of Lyndon checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 61 miles off. What to watch for.
What's on the federal record near Lyndon
Closest first, within ~10 miles of Lyndon. Listing isn't leaking, and distance isn't exposure.
- Lyndon Wastewater Treatment PlantUnderground Storage Tanks · 550 ft
- AgwayUnderground Storage Tanks · 1200 ft
- Three Bros. GarageUnderground Storage Tanks · 1200 ft
- Calkins Rock ProductsUnderground Storage Tanks · 1200 ft
- United Parcel Service St JohnsburyUnderground Storage Tanks · 2400 ft
- Wheeler SportsUnderground Storage Tanks · 2600 ft
- Getty Station #39Underground Storage Tanks · 2600 ft
- Charles Murray & Son /Speedwell IncUnderground Storage Tanks · 2600 ft
- Former Northern TireUnderground Storage Tanks · 2600 ft
- Town of Lyndon Highway GarageUnderground Storage Tanks · 2600 ft
- Jon's AutomotiveUnderground Storage Tanks · 2600 ft
- CALKINS ROCK PRODUCTS INCBrownfields · 2600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Lyndon'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 Lyndon.
Sources Checked
within ~10 miles of Lyndon
Severity Distribution
within ~10 miles of Lyndon
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lyndon, Superfund runs higher than the national average — 4 sites within ~10 miles of Lyndon. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Lyndon
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 Lyndon average
Your land is one point inside Lyndon
Everything above resolves to Lyndon as a whole — one PHZM band and one 28°F frost record, read across 152 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 Lyndon Average
Lyndon Average
- ●USDA Zones 4b, averaged across Lyndon
- ●One soil character for all of Lyndon
- ●Frost dates read at Lyndon's scale: May 4 to Oct 12
YOUR Parcel
- ✓Your exact zone, not Lyndon's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lyndon
Pull a site-specific report for your exact address in Lyndon, Vermont — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lyndon averages can't show:
We read public map data around Lyndon — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lyndon average
How we know this about Lyndon
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 Lyndon’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 Lyndon
When does frost risk typically end in Lyndon?
The last hard freeze (28°F) in Lyndon typically lands around May 4, 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 25.
When is the first frost in Lyndon?
The first hard freeze (28°F) in Lyndon typically arrives around Oct 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 28, so the watching starts about Sep 12 — about 161 days after the spring freeze cleared.
How long is the growing season in Lyndon?
Measured between 28°F hard freezes, Lyndon sees about 161 frost-free days — roughly May 4 through Oct 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 25 to Sep 28, about 126 days.
Is the soil safe to grow vegetables in Lyndon?
The federal record around Lyndon is a meaningful one — 312 documented sites, mostly Underground Storage Tanks entries (155), the nearest Underground Storage Tanks record about 0.1 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 Lyndon?
From about Sep 12 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 12 (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 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lyndon's scale — its 4b band and its 161-day season. Your yard writes its own version of Lyndon'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 Lyndon’s own scale
7 of the readings below were taken at Lyndon's own scale — its own ~161-day season between 28°F freezes, the 152 acres it covers and 312 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lyndon's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Lyndon's own 28°F hard-freeze dates, about May 4 and Oct 12 and the ~161-day span between themNOAA 1991–2020 Climate Normals
- 312 documented contamination sites on the federal record near Lyndon, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Lyndon's boundary and the 152 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~161-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lyndon's own centroid, the Northeastern HighlandsUS EPA Level III Ecoregions
- Lanternfly survey cells around Lyndon 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 Lyndon's 152 acres read through its county's SSURGO summaryfrom Caledonia County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Caledonia County
- The growing challenges every Vermont grower plans around — written at state scale, so they stay on the state guidefrom Vermont
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Caledonia County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lyndon's 152 acreswhy one lot differs from the next →
- Which side of Lyndon you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 152 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 Lyndon-wide figureread your own land →
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