Port Washington North, New York, sits in USDA hardiness zone 7b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Well-matched crops include cabbage, prickly pear, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Port Washington North, 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 Port Washington North 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 Port Washington North — soil, climate, flood, and parcel records. How we handle your address.
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Port Washington North — the short answer
Port Washington North, New York: USDA zone 7b, about 253 days between hard freezes, across 307 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~253
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 307 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 7b is Port Washington North's average, not your lot's — a low corner or a tree line moves it. Against Port Washington North's 253-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Port Washington North
Each reading below is measured for Port Washington North itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPort Washington North runs about 253 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
MeasuredPort Washington North sits in USDA hardiness zone 7b.
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 Port Washington North is in
Port Washington North sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Port Washington North's own centroid rather than borrowed from Nassau County.
What Grows in Port Washington North
Every plant below cleared Port Washington North's own zone 7b and its 253-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Port Washington North?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Port Washington North
Spotted lanternfly documented 4 miles from Port Washington North, first recorded 2020. What to watch for.
What's on the federal record near Port Washington North
Closest first, within ~10 miles of Port Washington North. Listing isn't leaking, and distance isn't exposure.
- OZTEC INDUSTRIES INCBrownfields · 400 ft
- N 8478. 1Nitrate · 750 ft
- ALK INCBrownfields · 950 ft
- BAYSIDE CONTROLSBrownfields · 1100 ft
- ALK-ABELLO, INCBrownfields · 1100 ft
- THOMSON INDUSTRIES INCBrownfields · 1400 ft
- THOMSON INDUSTRIES INCToxics Release Inventory · 1400 ft
- GULF SERVICE STATIONUnderground Storage Tanks · 1400 ft
- DENARDIS CONTR. CORPORATIONUnderground Storage Tanks · 1400 ft
- ANDREWS PAPER & CHEMICAL COBrownfields · 1700 ft
- TARGET STORE T3259Brownfields · 1700 ft
- N 3712. 1Nitrate · 1700 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Port Washington North'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 Port Washington North.
Total Sites
5,853
within ~10 miles of Port Washington North
Risk Level
High
Highest-severity
31 Superfund sites
Sources Checked
within ~10 miles of Port Washington North
Severity Distribution
within ~10 miles of Port Washington North
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Port Washington North, Nitrate runs higher than the national average — 1,646 sites within ~10 miles of Port Washington North. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Port Washington North
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 Port Washington North average
Your land is one point inside Port Washington North
Everything above resolves to Port Washington North as a whole — one PHZM band and one 28°F frost record, read across 307 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 Port Washington North Average
Port Washington North Average
- ●USDA Zones 7b, averaged across Port Washington North
- ●One soil character for all of Port Washington North
- ●Frost dates read at Port Washington North's scale: Mar 21 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Port Washington North's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Port Washington North
Pull a site-specific report for your exact address in Port Washington North, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Port Washington North averages can't show:
We read public map data around Port Washington North — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Port Washington North average
How we know this about Port Washington North
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 Port Washington North’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 Port Washington North
When does frost risk typically end in Port Washington North?
The last hard freeze (28°F) in Port Washington North typically lands around Mar 21, 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 Apr 11.
When is the first frost in Port Washington North?
The first hard freeze (28°F) in Port Washington North typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 253 days after the spring freeze cleared.
How long is the growing season in Port Washington North?
Measured between 28°F hard freezes, Port Washington North sees about 253 frost-free days — roughly Mar 21 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 11 to Nov 15, about 218 days.
Is the soil safe to grow vegetables in Port Washington North?
The federal record around Port Washington North runs heavier than most — 5,853 documented sites, mostly Underground Storage Tanks entries (2,077), the nearest Brownfields record under a tenth of a mile out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Port Washington North?
From about Oct 30 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Port Washington North's scale — its 7b band and its 253-day season. Your yard writes its own version of Port Washington North'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 Port Washington North’s own scale
7 of the readings below were taken at Port Washington North's own scale — its own ~253-day season between 28°F freezes, the 307 acres it covers and 5,853 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Port Washington North's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Port Washington North's own 28°F hard-freeze dates, about Mar 21 and Nov 29 and the ~253-day span between themNOAA 1991–2020 Climate Normals
- 5,853 documented contamination sites on the federal record near Port Washington North, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Port Washington North's boundary and the 307 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~253-day seasonGrowable Ground crop-matching engine
- The ecoregion at Port Washington North's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Port Washington Northlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Port Washington North's 307 acres read through its county's SSURGO summaryfrom Nassau County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Nassau 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 Nassau County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Port Washington North's 307 acreswhy one lot differs from the next →
- Which side of Port Washington North you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 307 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Port Washington North-wide figureread your own land →