Mylo, North Dakota, sits in USDA hardiness zone 3b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
On paper, cabbage, cranberry, epazote, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Mylo, 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 Mylo 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 Mylo — soil, climate, flood, and parcel records. How we handle your address.
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Mylo — the short answer
Mylo, North Dakota: USDA zone 3b, about 145 days between hard freezes, across 552 acres of city.
- USDA zone
- 3b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~145
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 552 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 3b is Mylo's average, not your lot's — a low corner or a tree line moves it. Against Mylo's 145-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mylo
Each reading below is measured for Mylo itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMylo runs about 145 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredMylo sits in USDA hardiness zone 3b.
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 Mylo is in
Mylo sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Mylo's own centroid rather than borrowed from Rolette County.
What Grows in Mylo
Every plant below cleared Mylo's own zone 3b and its 145-day season. Each card opens that plant's North Dakota profile. How we score.
Is it too late to plant in Mylo?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Apr 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 30 — long-season crops need about 90 days of runway, quick greens only 30. When the window is tight, the fall moves are quick ones — baby greens, radishes, and garlic set for next season.
What's on the federal record near Mylo
Closest first, within ~10 miles of Mylo. Listing isn't leaking, and distance isn't exposure.
- Farmers Union Oil CompanyUnderground Storage Tanks · 200 ft
- Wibe GarageUnderground Storage Tanks · 200 ft
- 160-069-31CAC1Nitrate · 350 ft
- 160-070-23DDDNitrate · 2.2 mi
- 160-069-27ACDNitrate · 3.7 mi
- 159-070-17DDDNitrate · 5.4 mi
- 159-069-23ADDNitrate · 5.9 mi
- 160-071-24DDD2 (NDSWC HWY66 42AVE)Nitrate · 6.5 mi
- 160-071-24DDDNitrate · 6.6 mi
- 159-070-29BBBNitrate · 6.7 mi
- 160-068-07CBBNitrate · 7.1 mi
- 160-071-26AAANitrate · 7.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mylo'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 Mylo.
Severity Distribution
within ~10 miles of Mylo
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mylo, Nitrate runs higher than the national average — 36 sites within ~10 miles of Mylo. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Mylo
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 Mylo average
Your land is one point inside Mylo
Everything above resolves to Mylo as a whole — one PHZM band and one 28°F frost record, read across 552 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 Mylo Average
Mylo Average
- ●USDA Zones 3b, averaged across Mylo
- ●One soil character for all of Mylo
- ●Frost dates read at Mylo's scale: May 8 to Sep 30
YOUR Parcel
- ✓Your exact zone, not Mylo's 3b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mylo
Pull a site-specific report for your exact address in Mylo, North Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mylo averages can't show:
We read public map data around Mylo — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mylo average
How we know this about Mylo
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 Mylo’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 Mylo
When does frost risk typically end in Mylo?
The last hard freeze (28°F) in Mylo typically lands around May 8, 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 29.
When is the first frost in Mylo?
The first hard freeze (28°F) in Mylo typically arrives around Sep 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 16, so the watching starts about Aug 31 — about 145 days after the spring freeze cleared.
How long is the growing season in Mylo?
Measured between 28°F hard freezes, Mylo sees about 145 frost-free days — roughly May 8 through Sep 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 29 to Sep 16, about 110 days.
Is the soil safe to grow vegetables in Mylo?
The federal record around Mylo is light — 40 documented sites across the 9 federal source types we checked, mostly Nitrate entries (36), the nearest Underground Storage Tanks record under a tenth of a mile out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do gardeners stretch the season in Mylo?
With about 145 frost-free days between hard freezes, Mylo rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 173 to 201 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 8 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Mylo's scale — its 3b band and its 145-day season. Your yard writes its own version of Mylo'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 Mylo’s own scale
6 of the readings below were taken at Mylo's own scale — its own ~145-day season between 28°F freezes, the 552 acres it covers and 40 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Mylo's own USDA hardiness band, zones 3bUSDA PHZM 2023
- Mylo's own 28°F hard-freeze dates, about May 8 and Sep 30 and the ~145-day span between themNOAA 1991–2020 Climate Normals
- 40 documented contamination sites on the federal record near Mylo, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Mylo's boundary and the 552 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 3b and a ~145-day seasonGrowable Ground crop-matching engine
- The ecoregion at Mylo's own centroid, the Northern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Mylo's 552 acres read through its county's SSURGO summaryfrom Rolette County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rolette County
- The growing challenges every North Dakota grower plans around — written at state scale, so they stay on the state guidefrom North Dakota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Rolette County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mylo's 552 acreswhy one lot differs from the next →
- Which side of Mylo you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 552 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Mylo-wide figureread your own land →
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