Waconia, Minnesota, sits in USDA hardiness zone 4b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Reliable performers under these conditions include cabbage, cranberry, turkish rocket, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Waconia, 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 Waconia 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 Waconia — soil, climate, flood, and parcel records. How we handle your address.
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Waconia — the short answer
Waconia, Minnesota: USDA zone 4b, about 186 days between hard freezes, across 4K acres of city.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~186
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 4K 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 4b is Waconia's average, not your lot's — a low corner or a tree line moves it. Against Waconia's 186-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Waconia
Each reading below is measured for Waconia itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWaconia runs about 186 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
MeasuredWaconia sits in USDA hardiness zone 4b.
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 Waconia is in
Waconia sits in the North Central Hardwood Forests — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Waconia's own centroid rather than borrowed from Carver County.
What Grows in Waconia
Every plant below cleared Waconia's own zone 4b and its 186-day season. Each card opens that plant's Minnesota profile. How we score.
Is it too late to plant in Waconia?
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 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 21 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
What's on the federal record near Waconia
Closest first, within ~10 miles of Waconia. Listing isn't leaking, and distance isn't exposure.
- MN UROLOGYBrownfields · 250 ft
- EDINA EYE PHYSICIANS AND SURGEONSBrownfields · 250 ft
- WALGREEN'S STORE 11690Brownfields · 300 ft
- CLOUDXVAPESBrownfields · 300 ft
- Holiday Stationstore #211Underground Storage Tanks · 300 ft
- MN ONCOLOGY HEMATOLOGY PA - WBrownfields · 300 ft
- RIDGEVIEW REGIONAL RADIATIONBrownfields · 300 ft
- WESTERN OB/GYNBrownfields · 300 ft
- OSWALL WILLIAM F DDS PABrownfields · 350 ft
- COLONY PLAZA INCBrownfields · 400 ft
- CENTRAL PRINTING 1Brownfields · 450 ft
- WACONIA FARM SUPPLYBrownfields · 750 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Waconia'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 Waconia.
Total Sites
838
within ~10 miles of Waconia
Risk Level
Elevated
Highest-severity
21 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Waconia
Severity Distribution
within ~10 miles of Waconia
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Waconia, two things run higher than the national average within ~10 miles of Waconia — Brownfields (522 sites) and PFAS (8 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Waconia
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 Waconia average
Your land is one point inside Waconia
Everything above resolves to Waconia as a whole — one PHZM band and one 28°F frost record, read across 4K 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 city 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 Waconia Average
Waconia Average
- ●USDA Zones 4b, averaged across Waconia
- ●One soil character for all of Waconia
- ●Frost dates read at Waconia's scale: Apr 18 to Oct 21
YOUR Parcel
- ✓Your exact zone, not Waconia's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Waconia
Pull a site-specific report for your exact address in Waconia, Minnesota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Waconia averages can't show:
We read public map data around Waconia — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Waconia average
How we know this about Waconia
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Waconia’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 city grain anywhere on this page — there is no city-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 Waconia
When does frost risk typically end in Waconia?
The last hard freeze (28°F) in Waconia typically lands around Apr 18, 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 9.
When is the first frost in Waconia?
The first hard freeze (28°F) in Waconia typically arrives around Oct 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 7, so the watching starts about Sep 21 — about 186 days after the spring freeze cleared.
How long is the growing season in Waconia?
Measured between 28°F hard freezes, Waconia sees about 186 frost-free days — roughly Apr 18 through Oct 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 7, about 151 days.
Is the soil safe to grow vegetables in Waconia?
The federal record around Waconia is a meaningful one — 838 documented sites, mostly Brownfields entries (522), the nearest Brownfields record under a tenth of a mile 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 Waconia?
From about Sep 21 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Waconia's scale — its 4b band and its 186-day season. Your yard writes its own version of Waconia'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 Waconia’s own scale
6 of the readings below were taken at Waconia's own scale — its own ~186-day season between 28°F freezes, the 3,592 acres it covers and 838 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Waconia's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Waconia's own 28°F hard-freeze dates, about Apr 18 and Oct 21 and the ~186-day span between themNOAA 1991–2020 Climate Normals
- 838 documented contamination sites on the federal record near Waconia, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Waconia's boundary and the 3,592 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~186-day seasonGrowable Ground crop-matching engine
- The ecoregion at Waconia's own centroid, the North Central Hardwood ForestsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Waconia's 3,592 acres read through its county's SSURGO summaryfrom Carver County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Carver County
- The growing challenges every Minnesota grower plans around — written at state scale, so they stay on the state guidefrom Minnesota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Carver County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Waconia's 3,592 acreswhy one lot differs from the next →
- Which side of Waconia you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,592 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 Waconia-wide figureread your own land →
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