Saugatuck, Connecticut, sits in USDA hardiness zone 7a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
A short list that earns its place here — cabbage, hazelnut, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Saugatuck, 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 Saugatuck 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 Saugatuck — soil, climate, flood, and parcel records. How we handle your address.
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Saugatuck — the short answer
Saugatuck, Connecticut: USDA zone 7a, about 235 days between hard freezes, across 1K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~235
- 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 7a is Saugatuck's average, not your lot's — a low corner or a tree line moves it. Against Saugatuck's 235-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Saugatuck
Each reading below is measured for Saugatuck itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSaugatuck runs about 235 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
MeasuredSaugatuck sits in USDA hardiness zone 7a.
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 Saugatuck is in
Saugatuck sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Saugatuck's own centroid rather than borrowed from Western Connecticut Planning Region.
What Grows in Saugatuck
Every plant below cleared Saugatuck's own zone 7a and its 235-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in Saugatuck?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 28 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 18 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Saugatuck
Spotted lanternfly documented 3 miles from Saugatuck, first recorded 2021. What to watch for.
What's on the federal record near Saugatuck
Closest first, within ~10 miles of Saugatuck. Listing isn't leaking, and distance isn't exposure.
- MINUTE MEN CLEANERS, INCBrownfields · 0.6 mi
- PUMP STATION #11Underground Storage Tanks · 0.6 mi
- MOBIL R/S #12734Underground Storage Tanks · 0.7 mi
- CT DOT - I 95 BRIDGE OVER SAUGATUCK AV - ADJACENT TO COMMUTER LOTBrownfields · 0.7 mi
- CT DOTBrownfields · 0.8 mi
- DOT CT STATE OFBrownfields · 0.8 mi
- SAUGATUCK HARBOR YACHT CLUB INC.Underground Storage Tanks · 0.8 mi
- CEDAR POINT YACHT CLUBUnderground Storage Tanks · 0.9 mi
- 16 Surf RoadUnderground Storage Tanks · 1.1 mi
- RALPH GILBERTIEUnderground Storage Tanks · 1.2 mi
- DR. MARK GOLDSTEINBrownfields · 1.2 mi
- 23 CALVIN MURPHY DRBrownfields · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Saugatuck'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 Saugatuck.
Sources Checked
within ~10 miles of Saugatuck
Severity Distribution
within ~10 miles of Saugatuck
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Saugatuck
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 Saugatuck average
Your land is one point inside Saugatuck
Everything above resolves to Saugatuck 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 Saugatuck Average
Saugatuck Average
- ●USDA Zones 7a, averaged across Saugatuck
- ●One soil character for all of Saugatuck
- ●Frost dates read at Saugatuck's scale: Mar 28 to Nov 18
YOUR Parcel
- ✓Your exact zone, not Saugatuck's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Saugatuck
Pull a site-specific report for your exact address in Saugatuck, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Saugatuck averages can't show:
We read public map data around Saugatuck — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Saugatuck average
How we know this about Saugatuck
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 Saugatuck’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 Saugatuck
When does frost risk typically end in Saugatuck?
The last hard freeze (28°F) in Saugatuck typically lands around Mar 28, 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 18.
When is the first frost in Saugatuck?
The first hard freeze (28°F) in Saugatuck typically arrives around Nov 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 4, so the watching starts about Oct 19 — about 235 days after the spring freeze cleared.
How long is the growing season in Saugatuck?
Measured between 28°F hard freezes, Saugatuck sees about 235 frost-free days — roughly Mar 28 through Nov 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 18 to Nov 4, about 200 days.
Is the soil safe to grow vegetables in Saugatuck?
The federal record around Saugatuck is a meaningful one — 1,377 documented sites, mostly Underground Storage Tanks entries (686), the nearest Brownfields record about 0.6 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 Saugatuck?
From about Oct 19 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 18 (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 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Saugatuck's scale — its 7a band and its 235-day season. Your yard writes its own version of Saugatuck'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 Saugatuck’s own scale
7 of the readings below were taken at Saugatuck's own scale — its own ~235-day season between 28°F freezes, the 1,189 acres it covers and 1,377 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Saugatuck's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Saugatuck's own 28°F hard-freeze dates, about Mar 28 and Nov 18 and the ~235-day span between themNOAA 1991–2020 Climate Normals
- 1,377 documented contamination sites on the federal record near Saugatuck, the closest Brownfields record about 0.6 miles out from the town centreFederal environmental registers
- Saugatuck's boundary and the 1,189 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~235-day seasonGrowable Ground crop-matching engine
- The ecoregion at Saugatuck's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Saugatucklydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Saugatuck's 1,189 acres read through its county's SSURGO summaryfrom Western Connecticut County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Western Connecticut 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 Western Connecticut County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Saugatuck's 1,189 acreswhy one lot differs from the next →
- Which side of Saugatuck you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,189 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.6 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 Saugatuck-wide figureread your own land →
More in Connecticut
Wider growing context
What grows across ConnecticutSaugatuck sits outside our named growing regions, so Connecticut as a whole is its closest context here.
Nearby growing guides