Glasco, New York, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, hazelnut, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Glasco, 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 Glasco 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 Glasco — soil, climate, flood, and parcel records. How we handle your address.
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Glasco — the short answer
Glasco, New York: USDA zone 6a, about 199 days between hard freezes, across 1K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~199
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 6a is Glasco's average, not your lot's — a low corner or a tree line moves it. Against Glasco's 199-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glasco
Each reading below is measured for Glasco itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGlasco 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
MeasuredGlasco 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 Glasco is in
Glasco sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glasco's own centroid, and it is not what its county reads: Ulster County is mostly Northeastern Highlands. The wider page above you is answering a different question about different ground.
What Grows in Glasco
Every plant below cleared Glasco's own zone 6a and its 199-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Glasco?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 13; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 26 — 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 Glasco
Spotted lanternfly documented 4 miles from Glasco, first recorded 2022. What to watch for.
What's on the federal record near Glasco
Closest first, within ~10 miles of Glasco. Listing isn't leaking, and distance isn't exposure.
- CHARLES M RICCARDI ELEM SCHOOLUnderground Storage Tanks · 400 ft
- GRECO BROS. AMUSE.Underground Storage Tanks · 850 ft
- A DEPOALA MUSHROOMS CO RT 9WUnderground Storage Tanks · 1200 ft
- GLASCO SEWER DISTRICTUnderground Storage Tanks · 1700 ft
- GRECO MOTORS INCUnderground Storage Tanks · 2100 ft
- QUICK CHEK CORPORATIONUnderground Storage Tanks · 0.6 mi
- QUICK CHEK STORE #134Brownfields · 0.6 mi
- STEWART'S SHOPS #276Underground Storage Tanks · 0.6 mi
- SAUGERTIES SUNOCOUnderground Storage Tanks · 0.8 mi
- 9 W CAR WASH INC.Underground Storage Tanks · 0.8 mi
- A & P GAS STOP CORP. - MOBIL MARTUnderground Storage Tanks · 0.8 mi
- LUKOIL NORTH AMERICA SVC. STATION #545Underground Storage Tanks · 0.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glasco'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 Glasco.
Total Sites
601
within ~10 miles of Glasco
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Glasco
Severity Distribution
within ~10 miles of Glasco
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Glasco, two things run higher than the national average within ~10 miles of Glasco — PFAS (6 sites) and Underground Storage Tanks (406 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Glasco
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 Glasco average
Your land is one point inside Glasco
Everything above resolves to Glasco 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 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 Glasco Average
Glasco Average
- ●USDA Zones 6a, averaged across Glasco
- ●One soil character for all of Glasco
- ●Frost dates read at Glasco's scale: Apr 10 to Oct 26
YOUR Parcel
- ✓Your exact zone, not Glasco's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glasco
Pull a site-specific report for your exact address in Glasco, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glasco averages can't show:
We read public map data around Glasco — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glasco average
How we know this about Glasco
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 Glasco’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 Glasco
When does frost risk typically end in Glasco?
The last hard freeze (28°F) in Glasco typically lands around Apr 10, 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 1.
When is the first frost in Glasco?
The first hard freeze (28°F) in Glasco typically arrives around Oct 26, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 12, so the watching starts about Sep 26 — about 199 days after the spring freeze cleared.
How long is the growing season in Glasco?
Measured between 28°F hard freezes, Glasco sees about 199 frost-free days — roughly Apr 10 through Oct 26, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 1 to Oct 12, about 164 days.
Is the soil safe to grow vegetables in Glasco?
The federal record around Glasco is a meaningful one — 601 documented sites, mostly Underground Storage Tanks entries (406), 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 Glasco?
From about Sep 26 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 26 (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 26. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Glasco's scale — its 6a band and its 199-day season. Your yard writes its own version of Glasco'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 Glasco’s own scale
7 of the readings below were taken at Glasco's own scale — its own ~199-day season between 28°F freezes, the 1,034 acres it covers and 601 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Glasco's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Glasco's own 28°F hard-freeze dates, about Apr 10 and Oct 26 and the ~199-day span between themNOAA 1991–2020 Climate Normals
- 601 documented contamination sites on the federal record near Glasco, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Glasco's boundary and the 1,034 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~199-day seasonGrowable Ground crop-matching engine
- Glasco sits in the Northeastern Coastal Zone — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Glascolydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Glasco's 1,034 acres read through its county's SSURGO summaryfrom Ulster County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Ulster County
- The growing challenges every New York grower plans around — written at state scale, so they stay on the state guidefrom New York
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Ulster County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Glasco's 1,034 acreswhy one lot differs from the next →
- Which side of Glasco you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,034 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 Glasco-wide figureread your own land →