What Grows in Pleasant Valley, Connecticut

USDA Zones 6a · 326 acres

Pleasant Valley, Connecticut, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.

The conditions favor cabbage, hazelnut, 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 Pleasant Valley, 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 Pleasant Valley 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 Pleasant Valley — soil, climate, flood, and parcel records. How we handle your address.

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Pleasant Valley — the short answer

Pleasant Valley, Connecticut: USDA zone 6a, about 189 days between hard freezes, across 326 acres of town.

USDA zone
6a
USDA PHZM 2023
Last hard freeze (28°F)
Apr 17
NOAA 1991–2020 Climate Normals, 28°F — this town
First hard freeze (28°F)
Oct 23
NOAA 1991–2020 Climate Normals, 28°F — this town
Days between freezes
~189
NOAA 1991–2020 Climate Normals, 28°F — this town
Town area
326 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

6a6a
3a (Cold)13b (Hot)

Zone 6a is Pleasant Valley's average, not your lot's — a low corner or a tree line moves it. Against Pleasant Valley's 189-day season, see what your own ground reads.

Soil varies lot by lot — soil types explained.

What this means for growing in Pleasant Valley

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

Season length

Measured

Pleasant Valley runs about 189 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

Measured

Pleasant Valley 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 Pleasant Valley is in

Pleasant Valley sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Pleasant Valley's own centroid rather than borrowed from Northwest Hills Planning Region.

What that means for soil

What Grows in Pleasant Valley

Every plant below cleared Pleasant Valley's own zone 6a and its 189-day season. Each card opens that plant's Connecticut profile. How we score.

cabbage, photograph
Growing cabbage in ConnecticutZones 2–11Pleasant Valley's 6a — 4 zones of cold margin.
hazelnut, photograph
Connecticut hazelnut guideZones 4–9Pleasant Valley's 6a — 2 zones of cold margin.
lavender, photograph
Lavender in ConnecticutZones 5–8Pleasant Valley's 6a — 1 zone of cold margin.
collard greens, photograph
Collard greens: Connecticut growing notesZones 2–11Pleasant Valley's 6a — 4 zones of cold margin.
blackberry, photograph
Growing blackberry in ConnecticutZones 5–8Pleasant Valley's 6a — 1 zone of cold margin.
California poppy, photograph
Connecticut california poppy guideZones 6–10Pleasant Valley's 6a is its exact cold limit.
garlic, photograph
Garlic in ConnecticutZones 2–10Pleasant Valley's 6a — 4 zones of cold margin.
cranberry, photograph
Cranberry: Connecticut growing notesZones 2–7Pleasant Valley's 6a — 4 zones of cold margin.
St. Johns wort, photograph
Growing st. johns wort in ConnecticutZones 3–8Pleasant Valley's 6a — 3 zones of cold margin.
kale, photograph
Connecticut kale guideZones 2–11Pleasant Valley's 6a — 4 zones of cold margin.
pawpaw, photograph
Pawpaw in ConnecticutZones 5–9Pleasant Valley's 6a — 1 zone of cold margin.
Turkish rocket, photograph
Turkish rocket: Connecticut growing notesPleasant Valley's 189 days clear the ~90 it needs.
lentil, photograph
Growing lentil in ConnecticutZones 2–11Pleasant Valley's 189 days clear the ~70 it needs.
okra, photograph
Connecticut okra guideZones 2–12Pleasant Valley's 189 days clear the ~50 it needs.
potato, photograph
Potato in ConnecticutZones 2–11Pleasant Valley's 6a — 4 zones of cold margin.
hosta, photograph
Hosta: Connecticut growing notesZones 3–8Pleasant Valley's 6a — 3 zones of cold margin.
sunflower, photograph
Growing sunflower in ConnecticutZones 2–11Pleasant Valley's 189 days clear the ~70 it needs.
azalea, photograph
Connecticut azalea guideZones 4–8Pleasant Valley's 6a — 2 zones of cold margin.
hops, photograph
Hops in ConnecticutZones 3–8Pleasant Valley's 6a — 3 zones of cold margin.
iris, photograph
Iris: Connecticut growing notesZones 3–10Pleasant Valley's 6a — 3 zones of cold margin.
French marigold, photograph
Growing french marigold in ConnecticutPleasant Valley's 189 days clear the ~50 it needs.
lilac, photograph
Connecticut lilac guideZones 4–10Pleasant Valley's 6a — 2 zones of cold margin.
American bittersweet, photograph
American bittersweet in ConnecticutZones 3–8Pleasant Valley's 6a — 3 zones of cold margin.
tulip, photograph
Tulip: Connecticut growing notesZones 6–8Pleasant Valley's 6a is its exact cold limit.
American elm, photograph
Growing american elm in ConnecticutZones 3–9Pleasant Valley's 6a — 3 zones of cold margin.
Ethiopian mustard, photograph
Connecticut ethiopian mustard guideZones 4–10Pleasant Valley's 6a — 2 zones of cold margin.
Kentucky bluegrass, botanical illustration
Kentucky bluegrass in ConnecticutZones 2–7Pleasant Valley's 6a — 4 zones of cold margin.
blue spruce, photograph
Blue spruce: Connecticut growing notesZones 2–8Pleasant Valley's 6a — 4 zones of cold margin.
alfalfa, photograph
Growing alfalfa in ConnecticutZones 2–10Pleasant Valley's 189 days clear the ~100 it needs.
Canada wild rye, photograph
Connecticut canada wild rye guideZones 3–8Pleasant Valley's 6a — 3 zones of cold margin.

Is it too late to plant in Pleasant Valley?

Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — 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 Pleasant Valley

Spotted lanternfly documented 8 miles from Pleasant Valley, first recorded 2021. What to watch for.

What's on the federal record near Pleasant Valley

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

  1. THE METROPOLITAN DISTRICT-SUPPLY DIVISIONUnderground Storage Tanks · 1500 ft
  2. STERLING ENGINEERING CORPORATIONUnderground Storage Tanks · 1500 ft
  3. PEOPLES STATE FORESTUnderground Storage Tanks · 1500 ft
  4. LOMBARD FORDUnderground Storage Tanks · 1500 ft
  5. On The Go Country StoreUnderground Storage Tanks · 1900 ft
  6. A A A AUTOMATIC AND BRAKEBrownfields · 2300 ft
  7. THE HITCHCOCK CHAIR CO., PLANT #2Underground Storage Tanks · 0.6 mi
  8. REGIONAL REFUSE DISPOSAL DISTRICT #1Underground Storage Tanks · 1.0 mi
  9. LOMBARD FORD INCBrownfields · 1.0 mi
  10. BARKHAMSTED-NEW HARTFORD LANDFILLSuperfund · 1.0 mi
  11. CT-BA 83Nitrate · 1.2 mi
  12. STERLING ENGINEERING CORPORATIONToxics Release Inventory · 1.3 mi

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

Measured from Pleasant Valley'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 Pleasant Valley.

Total Sites

585

within ~10 miles of Pleasant Valley

Risk Level

Elevated

Highest-severity

5 Superfund sites

Severity Distribution

within ~10 miles of Pleasant Valley

High6Moderate225Low354

Highest-Severity Sites

Aquarion Water CO of Ct-Simsbury System
PFAS Sampling · PFAS Detected
Avon Water CO.
PFAS Sampling · PFAS Detected
Barkhamsted-New Hartford Landfill
Superfund · Superfund NPL
Ctwc - Naugatuck Reg-Collinsville Sys
PFAS Sampling · PFAS Detected
Lead Mine
Mining Sites · Past Producer

A note from Gnorman

What an experienced grower watches for around here

In and around Pleasant Valley, PFAS runs higher than the national average — 6 sites within ~10 miles of Pleasant Valley. 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.

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

Free Report

Check your specific parcel in Pleasant Valley

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 Pleasant Valley average

Your land is one point inside Pleasant Valley

Everything above resolves to Pleasant Valley as a whole — one PHZM band and one 28°F frost record, read across 326 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 Pleasant Valley Average

Pleasant Valley Average

  • USDA Zones 6a, averaged across Pleasant Valley
  • One soil character for all of Pleasant Valley
  • Frost dates read at Pleasant Valley's scale: Apr 17 to Oct 23

YOUR Parcel

  • Your exact zone, not Pleasant Valley's 6a
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Pleasant Valley

Pull a site-specific report for your exact address in Pleasant Valley, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your lot that Pleasant Valley averages can't show:

Your soil pHYour frost-free days — Pleasant Valley averages 189Your sun & shade

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

25+ data sources read at your address, not the Pleasant Valley average

How we know this about Pleasant Valley

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 Pleasant Valley’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 Pleasant Valley

When does frost risk typically end in Pleasant Valley?

The last hard freeze (28°F) in Pleasant Valley typically lands around Apr 17, 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 8.

When is the first frost in Pleasant Valley?

The first hard freeze (28°F) in Pleasant Valley typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 189 days after the spring freeze cleared.

How long is the growing season in Pleasant Valley?

Measured between 28°F hard freezes, Pleasant Valley sees about 189 frost-free days — roughly Apr 17 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 8 to Oct 9, about 154 days.

Is the soil safe to grow vegetables in Pleasant Valley?

The federal record around Pleasant Valley is a meaningful one — 585 documented sites, mostly Underground Storage Tanks entries (267), 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 Pleasant Valley?

From about Sep 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.

Everything above is measured at Pleasant Valley's scale — its 6a band and its 189-day season. Your yard writes its own version of Pleasant Valley'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 Pleasant Valley’s own scale

7 of the readings below were taken at Pleasant Valley's own scale — its own ~189-day season between 28°F freezes, the 326 acres it covers and 585 documented sites around it; 4 are borrowed from a wider read, named and linked below.

Measured here

  • Pleasant Valley's own USDA hardiness band, zones 6aUSDA PHZM 2023
  • Pleasant Valley's own 28°F hard-freeze dates, about Apr 17 and Oct 23 and the ~189-day span between themNOAA 1991–2020 Climate Normals
  • 585 documented contamination sites on the federal record near Pleasant Valley, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
  • Pleasant Valley's boundary and the 326 acres inside itUS Census TIGER/Line 2025
  • Which of 1,086 plants clear zones 6a and a ~189-day seasonGrowable Ground crop-matching engine
  • The ecoregion at Pleasant Valley's own centroid, the Northeastern HighlandsUS EPA Level III Ecoregions
  • A documented spotted-lanternfly record within reach of Pleasant Valleylydemapr (De Bona & Helmus), 10 km survey lattice

Inherited from a wider read

  • Soil character — no town-scale survey exists, so Pleasant Valley's 326 acres read through its county's SSURGO summaryfrom Northwest Hills County
  • Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Northwest Hills County
  • The growing challenges every Connecticut grower plans around — written at state scale, so they stay on the state guidefrom Connecticut
  • Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Northwest Hills County

What this page can’t tell you

  • The soil pH, drainage, sun hours, and frost pockets on any one lot among Pleasant Valley's 326 acreswhy one lot differs from the next
  • Which side of Pleasant Valley you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 326 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 Pleasant Valley-wide figureread your own land
The next step finer is your own address