Delano, Minnesota, sits in USDA hardiness zone 4b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with cabbage, cranberry, turkish rocket, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Delano, 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 Delano 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 Delano — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Delano — the short answer
Delano, Minnesota: USDA zone 4b, about 185 days between hard freezes, across 3K 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 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~185
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 Delano's average, not your lot's — a low corner or a tree line moves it. Against Delano's 185-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Delano
Each reading below is measured for Delano itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredDelano runs about 185 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
MeasuredDelano 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 Delano is in
Delano sits in the North Central Hardwood Forests — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Delano's own centroid rather than borrowed from Wright County.
What Grows in Delano
Every plant below cleared Delano's own zone 4b and its 185-day season. Each card opens that plant's Minnesota profile. How we score.
Is it too late to plant in Delano?
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 20 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Delano
Closest first, within ~10 miles of Delano. Listing isn't leaking, and distance isn't exposure.
- DOLLAR GENERAL #22351Brownfields · 400 ft
- Skartvedts Absolute Automotive IncUnderground Storage Tanks · 450 ft
- Leland & Sons Auto ServiceUnderground Storage Tanks · 600 ft
- Holiday Stationstore #214Underground Storage Tanks · 750 ft
- Elsa Westrup EstateUnderground Storage Tanks · 1200 ft
- 118N25W11DAB 01 0000206950Nitrate · 1400 ft
- SuperAmerica StoreUnderground Storage Tanks · 1400 ft
- BRADYS AUTO REPAIR INCBrownfields · 1400 ft
- McCoy OilUnderground Storage Tanks · 1500 ft
- DELANO MUNICIPAL UTILITIESBrownfields · 1500 ft
- DELANO CITY HALLBrownfields · 1900 ft
- 118N25W12CBC 01 0000218002Nitrate · 2000 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Delano'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 Delano.
Total Sites
574
within ~10 miles of Delano
Risk Level
Elevated
Highest-severity
19 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Delano
Severity Distribution
within ~10 miles of Delano
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Delano, two things run higher than the national average within ~10 miles of Delano — PFAS (7 sites) and Brownfields (325 sites). 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.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Delano
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 Delano average
Your land is one point inside Delano
Everything above resolves to Delano as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Delano Average
Delano Average
- ●USDA Zones 4b, averaged across Delano
- ●One soil character for all of Delano
- ●Frost dates read at Delano's scale: Apr 18 to Oct 20
YOUR Parcel
- ✓Your exact zone, not Delano's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Delano
Pull a site-specific report for your exact address in Delano, Minnesota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Delano averages can't show:
We read public map data around Delano — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Delano average
How we know this about Delano
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 Delano’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 Delano
When does frost risk typically end in Delano?
The last hard freeze (28°F) in Delano 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 Delano?
The first hard freeze (28°F) in Delano typically arrives around Oct 20, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 6, so the watching starts about Sep 20 — about 185 days after the spring freeze cleared.
How long is the growing season in Delano?
Measured between 28°F hard freezes, Delano sees about 185 frost-free days — roughly Apr 18 through Oct 20, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 6, about 150 days.
Is the soil safe to grow vegetables in Delano?
The federal record around Delano is a meaningful one — 574 documented sites, mostly Brownfields entries (325), 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 Delano?
From about Sep 20 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 20 (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 20. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Delano's scale — its 4b band and its 185-day season. Your yard writes its own version of Delano'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 Delano’s own scale
6 of the readings below were taken at Delano's own scale — its own ~185-day season between 28°F freezes, the 3,165 acres it covers and 574 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Delano's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Delano's own 28°F hard-freeze dates, about Apr 18 and Oct 20 and the ~185-day span between themNOAA 1991–2020 Climate Normals
- 574 documented contamination sites on the federal record near Delano, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Delano's boundary and the 3,165 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~185-day seasonGrowable Ground crop-matching engine
- The ecoregion at Delano'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 Delano's 3,165 acres read through its county's SSURGO summaryfrom Wright County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wright 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 Wright County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Delano's 3,165 acreswhy one lot differs from the next →
- Which side of Delano you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,165 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 Delano-wide figureread your own land →
More in Minnesota
Wider growing context
What grows across MinnesotaDelano sits outside our named growing regions, so Minnesota as a whole is its closest context here.
Nearby growing guides