What Grows in Country Knolls, New York

USDA Zones 5b · 2K acres

Country Knolls, New York, sits in USDA hardiness zone 5b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.

The conditions favor cabbage, cranberry, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.

Score your parcel · free

Even in Country Knolls, 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 Country Knolls 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 Country Knolls — soil, climate, flood, and parcel records. How we handle your address.

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Country Knolls — the short answer

Country Knolls, New York: USDA zone 5b, about 202 days between hard freezes, across 2K acres of town.

USDA zone
5b
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 30
NOAA 1991–2020 Climate Normals, 28°F — this town
Days between freezes
~202
NOAA 1991–2020 Climate Normals, 28°F — this town
Town area
2K 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

5b5b
3a (Cold)13b (Hot)

Zone 5b is Country Knolls's average, not your lot's — a low corner or a tree line moves it. Against Country Knolls's 202-day season, see what your own ground reads.

Soil varies lot by lot — soil types explained.

What this means for growing in Country Knolls

Each reading below is measured for Country Knolls itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length

Measured

Country Knolls runs about 202 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

Measured

Country Knolls 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 Country Knolls is in

Country Knolls sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Country Knolls's own centroid rather than borrowed from Saratoga County.

What that means for soil

What Grows in Country Knolls

Every plant below cleared Country Knolls's own zone 5b and its 202-day season. Each card opens that plant's New York profile. How we score.

cabbage, photograph
Growing cabbage in New YorkZones 2–11Country Knolls's 5b — 3 zones of cold margin.
cranberry, photograph
New York cranberry guideZones 2–7Country Knolls's 5b — 3 zones of cold margin.
lavender, photograph
Lavender in New YorkZones 5–8Country Knolls's 5b is its exact cold limit.
collard greens, photograph
Collard greens: New York growing notesZones 2–11Country Knolls's 5b — 3 zones of cold margin.
hazelnut, photograph
Growing hazelnut in New YorkZones 4–9Country Knolls's 5b — 1 zone of cold margin.
St. Johns wort, photograph
New York st. johns wort guideZones 3–8Country Knolls's 5b — 2 zones of cold margin.
garlic, photograph
Garlic in New YorkZones 2–10Country Knolls's 5b — 3 zones of cold margin.
blueberry, photograph
Blueberry: New York growing notesZones 3–8Country Knolls's 5b — 2 zones of cold margin.
Turkish rocket, photograph
Growing turkish rocket in New YorkCountry Knolls's 202 days clear the ~90 it needs.
kale, photograph
New York kale guideZones 2–11Country Knolls's 5b — 3 zones of cold margin.
apple, photograph
Apple in New YorkZones 3–8Country Knolls's 5b — 2 zones of cold margin.
lentil, photograph
Lentil: New York growing notesZones 2–11Country Knolls's 202 days clear the ~70 it needs.
okra, photograph
Growing okra in New YorkZones 2–12Country Knolls's 202 days clear the ~50 it needs.
potato, photograph
New York potato guideZones 2–11Country Knolls's 5b — 3 zones of cold margin.
pumpkin, photograph
Pumpkin in New YorkZones 3–11Country Knolls's 202 days clear the ~40 it needs.
hosta, photograph
Hosta: New York growing notesZones 3–8Country Knolls's 5b — 2 zones of cold margin.
sunflower, photograph
Growing sunflower in New YorkZones 2–11Country Knolls's 202 days clear the ~70 it needs.
azalea, photograph
New York azalea guideZones 4–8Country Knolls's 5b — 1 zone of cold margin.
hops, photograph
Hops in New YorkZones 3–8Country Knolls's 5b — 2 zones of cold margin.
iris, photograph
Iris: New York growing notesZones 3–10Country Knolls's 5b — 2 zones of cold margin.
French marigold, photograph
Growing french marigold in New YorkCountry Knolls's 202 days clear the ~50 it needs.
lilac, photograph
New York lilac guideZones 4–10Country Knolls's 5b — 1 zone of cold margin.
American bittersweet, photograph
American bittersweet in New YorkZones 3–8Country Knolls's 5b — 2 zones of cold margin.
Canada anemone, photograph
Canada anemone: New York growing notesZones 3–8Country Knolls's 5b — 2 zones of cold margin.
American elm, photograph
Growing american elm in New YorkZones 3–9Country Knolls's 5b — 2 zones of cold margin.
alfalfa, photograph
New York alfalfa guideZones 2–10Country Knolls's 202 days clear the ~100 it needs.
Kentucky bluegrass, botanical illustration
Kentucky bluegrass in New YorkZones 2–7Country Knolls's 5b — 3 zones of cold margin.
blue spruce, photograph
Blue spruce: New York growing notesZones 2–8Country Knolls's 5b — 3 zones of cold margin.
annual ryegrass, photograph
Growing annual ryegrass in New YorkZones 3–10Country Knolls's 202 days clear the ~90 it needs.
Canada wild rye, photograph
New York canada wild rye guideZones 3–8Country Knolls's 5b — 2 zones of cold margin.

Is it too late to plant in Country Knolls?

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 30 — 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 Country Knolls

Spotted lanternfly documented 6 miles from Country Knolls, first recorded 2023. What to watch for.

What's on the federal record near Country Knolls

Closest first, within ~10 miles of Country Knolls. Listing isn't leaking, and distance isn't exposure.

  1. FRANK J. PARILLOUnderground Storage Tanks · 1800 ft
  2. SA1284Nitrate · 0.5 mi
  3. JONESVILLE FIRE DISTRICT - STATION #1Underground Storage Tanks · 0.7 mi
  4. MOBIL S/S 08-MTEUnderground Storage Tanks · 0.8 mi
  5. STEWARTS SHOPS #365Underground Storage Tanks · 0.8 mi
  6. NEW YORK TELEPHONEUnderground Storage Tanks · 0.8 mi
  7. COUNTRY CLUB ACRES INCUnderground Storage Tanks · 0.9 mi
  8. PORTOLA PACKAGING INCBrownfields · 1.1 mi
  9. D K AND S ENTERPRISES INCUnderground Storage Tanks · 1.1 mi
  10. STATE LINE SNACKS CORP.Underground Storage Tanks · 1.2 mi
  11. CHURCH OF CORPUS CHRISTIUnderground Storage Tanks · 1.2 mi
  12. VIVE COLLISION DBA NEETS AUTO BODYBrownfields · 1.2 mi

6 more sites are on the record inside the same radius. See them on the map

Measured from Country Knolls'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 Country Knolls.

Total Sites

1,004

within ~10 miles of Country Knolls

Risk Level

Elevated

Highest-severity

15 Superfund sites

Severity Distribution

within ~10 miles of Country Knolls

High5Moderate298Low701

Highest-Severity Sites

Clifton Park Water Authority
PFAS Sampling · PFAS Detected
Malta Rocket Fuel Area
Superfund · Superfund NPL
Waterford Water Works (Purchase Troy)
PFAS Sampling · PFAS Detected
Advance Energy Technologies INC
Toxics Release Inventory · 1206WDVNCNNESLA
Agrochem, INC
Toxics Release Inventory · 1286wgrchm26fre

A note from Gnorman

What an experienced grower watches for around here

In and around Country Knolls, two things run higher than the national average within ~10 miles of Country Knolls — PFAS (11 sites) and Superfund (15 sites). That's not a problem with your land — it's information about it.

PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.

Superfund: Superfund sites represent the most severe contamination in the federal system.

Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.

Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).

Free Report

Check your specific parcel in Country Knolls

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 Country Knolls average

Your land is one point inside Country Knolls

Everything above resolves to Country Knolls as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Country Knolls Average

Country Knolls Average

  • USDA Zones 5b, averaged across Country Knolls
  • One soil character for all of Country Knolls
  • Frost dates read at Country Knolls's scale: Apr 11 to Oct 30

YOUR Parcel

  • Your exact zone, not Country Knolls's 5b
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Country Knolls

Pull a site-specific report for your exact address in Country Knolls, New York — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your lot that Country Knolls averages can't show:

Your soil pHYour frost-free days — Country Knolls averages 202Your sun & shade

We read public map data around Country Knolls — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the Country Knolls average

How we know this about Country Knolls

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 Country Knolls’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 Country Knolls

When does frost risk typically end in Country Knolls?

The last hard freeze (28°F) in Country Knolls 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 Country Knolls?

The first hard freeze (28°F) in Country Knolls typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 202 days after the spring freeze cleared.

How long is the growing season in Country Knolls?

Measured between 28°F hard freezes, Country Knolls sees about 202 frost-free days — roughly Apr 11 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 2 to Oct 16, about 167 days.

Is the soil safe to grow vegetables in Country Knolls?

The federal record around Country Knolls is a meaningful one — 1,004 documented sites, mostly Underground Storage Tanks entries (499), the nearest Underground Storage Tanks record about 0.3 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 Country Knolls?

From about Sep 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 Oct 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.

Everything above is measured at Country Knolls's scale — its 5b band and its 202-day season. Your yard writes its own version of Country Knolls'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 Country Knolls’s own scale

7 of the readings below were taken at Country Knolls's own scale — its own ~202-day season between 28°F freezes, the 2,191 acres it covers and 1,004 documented sites around it; 4 are borrowed from a wider read, named and linked below.

Measured here

  • Country Knolls's own USDA hardiness band, zones 5bUSDA PHZM 2023
  • Country Knolls's own 28°F hard-freeze dates, about Apr 11 and Oct 30 and the ~202-day span between themNOAA 1991–2020 Climate Normals
  • 1,004 documented contamination sites on the federal record near Country Knolls, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
  • Country Knolls's boundary and the 2,191 acres inside itUS Census TIGER/Line 2025
  • Which of 1,086 plants clear zones 5b and a ~202-day seasonGrowable Ground crop-matching engine
  • The ecoregion at Country Knolls's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
  • A documented spotted-lanternfly record within reach of Country Knollslydemapr (De Bona & Helmus), 10 km survey lattice

Inherited from a wider read

  • Soil character — no town-scale survey exists, so Country Knolls's 2,191 acres read through its county's SSURGO summaryfrom Saratoga County
  • Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Saratoga 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 Saratoga County

What this page can’t tell you

  • The soil pH, drainage, sun hours, and frost pockets on any one lot among Country Knolls's 2,191 acreswhy one lot differs from the next
  • Which side of Country Knolls you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,191 acresreading your own microclimate
  • How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Country Knolls-wide figureread your own land
The next step finer is your own address

More in New York

Wider growing context

What grows across New York

Country Knolls sits outside our named growing regions, so New York as a whole is its closest context here.