Thousand Island Park, New York, sits in USDA hardiness zone 5b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, blueberry, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Thousand Island Park, 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 Thousand Island Park 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 Thousand Island Park — soil, climate, flood, and parcel records. How we handle your address.
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Thousand Island Park — the short answer
Thousand Island Park, New York: USDA zone 5b, about 209 days between hard freezes, across 190 acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~209
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 190 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 Thousand Island Park's average, not your lot's — a low corner or a tree line moves it. Against Thousand Island Park's 209-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Thousand Island Park
Each reading below is measured for Thousand Island Park itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredThousand Island Park runs about 209 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredThousand Island Park 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 Thousand Island Park is in
Thousand Island Park sits in the Eastern Great Lakes Lowlands — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Thousand Island Park's own centroid rather than borrowed from Jefferson County.
What Grows in Thousand Island Park
Every plant below cleared Thousand Island Park's own zone 5b and its 209-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Thousand Island Park?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 7 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Thousand Island Park
Survey cells within 31 miles of Thousand Island Park checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 85 miles off. What to watch for.
What's on the federal record near Thousand Island Park
Closest first, within ~10 miles of Thousand Island Park. Listing isn't leaking, and distance isn't exposure.
- NEW YORK TELEPHONEUnderground Storage Tanks · 300 ft
- THOUSAND ISLAND PARK MARINAUnderground Storage Tanks · 650 ft
- CHALK'S MARINA & BOAT SALES, LLCUnderground Storage Tanks · 1.1 mi
- BILL AND JACK'S MARINA, LLCUnderground Storage Tanks · 1.1 mi
- FINE VIEW MINI MARTUnderground Storage Tanks · 1.9 mi
- CASKINETTE AUTO SALESUnderground Storage Tanks · 2.2 mi
- SPICER MARINE BASINUnderground Storage Tanks · 2.2 mi
- ANCHOR DEVELOPMENT, LLCUnderground Storage Tanks · 2.4 mi
- 1000 ISLAND BAIT STOREUnderground Storage Tanks · 2.4 mi
- ALEXANDRIA BAY CITGOUnderground Storage Tanks · 2.4 mi
- GRASS POINT STATE PARKUnderground Storage Tanks · 2.4 mi
- BENJAMIN-MURPHY ASSOCIATES PTRUnderground Storage Tanks · 2.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Thousand Island Park'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 Thousand Island Park.
Total Sites
121
within ~10 miles of Thousand Island Park
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Thousand Island Park
Severity Distribution
within ~10 miles of Thousand Island Park
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Thousand Island Park, Underground Storage Tanks runs higher than the national average — 88 sites within ~10 miles of Thousand Island Park. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Thousand Island Park
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 Thousand Island Park average
Your land is one point inside Thousand Island Park
Everything above resolves to Thousand Island Park as a whole — one PHZM band and one 28°F frost record, read across 190 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 Thousand Island Park Average
Thousand Island Park Average
- ●USDA Zones 5b, averaged across Thousand Island Park
- ●One soil character for all of Thousand Island Park
- ●Frost dates read at Thousand Island Park's scale: Apr 12 to Nov 7
YOUR Parcel
- ✓Your exact zone, not Thousand Island Park's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Thousand Island Park
Pull a site-specific report for your exact address in Thousand Island Park, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Thousand Island Park averages can't show:
We read public map data around Thousand Island Park — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Thousand Island Park average
How we know this about Thousand Island Park
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 Thousand Island Park’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 Thousand Island Park
When does frost risk typically end in Thousand Island Park?
The last hard freeze (28°F) in Thousand Island Park typically lands around Apr 12, 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 3.
When is the first frost in Thousand Island Park?
The first hard freeze (28°F) in Thousand Island Park typically arrives around Nov 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 24, so the watching starts about Oct 8 — about 209 days after the spring freeze cleared.
How long is the growing season in Thousand Island Park?
Measured between 28°F hard freezes, Thousand Island Park sees about 209 frost-free days — roughly Apr 12 through Nov 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 3 to Oct 24, about 174 days.
Is the soil safe to grow vegetables in Thousand Island Park?
The federal record around Thousand Island Park shows 121 documented sites, mostly Underground Storage Tanks entries (88), the nearest Underground Storage Tanks record under a tenth of a mile out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Thousand Island Park?
From about Oct 8 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 Nov 7 (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 Nov 7. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Thousand Island Park's scale — its 5b band and its 209-day season. Your yard writes its own version of Thousand Island Park'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 Thousand Island Park’s own scale
7 of the readings below were taken at Thousand Island Park's own scale — its own ~209-day season between 28°F freezes, the 190 acres it covers and 121 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Thousand Island Park's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Thousand Island Park's own 28°F hard-freeze dates, about Apr 12 and Nov 7 and the ~209-day span between themNOAA 1991–2020 Climate Normals
- 121 documented contamination sites on the federal record near Thousand Island Park, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Thousand Island Park's boundary and the 190 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~209-day seasonGrowable Ground crop-matching engine
- The ecoregion at Thousand Island Park's own centroid, the Eastern Great Lakes LowlandsUS EPA Level III Ecoregions
- Lanternfly survey cells around Thousand Island Park 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 Thousand Island Park's 190 acres read through its county's SSURGO summaryfrom Jefferson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jefferson 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 Jefferson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Thousand Island Park's 190 acreswhy one lot differs from the next →
- Which side of Thousand Island Park you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 190 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 Thousand Island Park-wide figureread your own land →