Viburnum, Missouri, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, hazelnut, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Viburnum, 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 Viburnum 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 Viburnum — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Viburnum — the short answer
Viburnum, Missouri: USDA zone 6b, about 224 days between hard freezes, across 1K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~224
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City 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 6b is Viburnum's average, not your lot's — a low corner or a tree line moves it. Against Viburnum's 224-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Viburnum
Each reading below is measured for Viburnum itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredViburnum runs about 224 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
MeasuredViburnum sits in USDA hardiness zone 6b.
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 Viburnum is in
Viburnum sits in the Ozark Highlands — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Viburnum's own centroid rather than borrowed from Iron County.
What Grows in Viburnum
Every plant below cleared Viburnum's own zone 6b and its 224-day season. Each card opens that plant's Missouri profile. How we score.
Is it too late to plant in Viburnum?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 6 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Viburnum
Survey cells within 31 miles of Viburnum checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 268 miles off. What to watch for.
What's on the federal record near Viburnum
Closest first, within ~10 miles of Viburnum. Listing isn't leaking, and distance isn't exposure.
- ST JOSEPH TRAILER COURTSuperfund · 550 ft
- VIBURNAM ARROUnderground Storage Tanks · 1000 ft
- CENTRAL SERVICES DIVISIONUnderground Storage Tanks · 1100 ft
- ST JOE MINERALS CORPORATIONUnderground Storage Tanks · 1200 ft
- CASEYS GENERAL STORE #1129Underground Storage Tanks · 1300 ft
- IRON COUNTY C-4 SCHOOLSUnderground Storage Tanks · 1400 ft
- IRON COUNTY C4 SCHOOL DISTRICTBrownfields · 0.5 mi
- DOE RUN CO STOREROOM 13Brownfields · 0.5 mi
- DOE RUN COMPANY TECHNOLOGY CENTER THEBrownfields · 0.6 mi
- T35N R02W 36CDA1Nitrate · 0.6 mi
- DOE RUN COMPANY VIBURNUM CENTERAL SERVICES FACILITY THEToxics Release Inventory · 0.7 mi
- DOE RUN COMPANY VIBURNUM CENTERAL SERVICES FACILITY THEBrownfields · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Viburnum'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 Viburnum.
Total Sites
57
within ~10 miles of Viburnum
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Viburnum
Severity Distribution
within ~10 miles of Viburnum
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Viburnum, two things run higher than the national average within ~10 miles of Viburnum — Mining (9 sites) and Nitrate (20 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Viburnum
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 Viburnum average
Your land is one point inside Viburnum
Everything above resolves to Viburnum 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 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 Viburnum Average
Viburnum Average
- ●USDA Zones 6b, averaged across Viburnum
- ●One soil character for all of Viburnum
- ●Frost dates read at Viburnum's scale: Mar 27 to Nov 6
YOUR Parcel
- ✓Your exact zone, not Viburnum's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Viburnum
Pull a site-specific report for your exact address in Viburnum, Missouri — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Viburnum averages can't show:
We read public map data around Viburnum — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Viburnum average
How we know this about Viburnum
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 Viburnum’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 Viburnum
When does frost risk typically end in Viburnum?
The last hard freeze (28°F) in Viburnum typically lands around Mar 27, 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 17.
When is the first frost in Viburnum?
The first hard freeze (28°F) in Viburnum typically arrives around Nov 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 23, so the watching starts about Oct 7 — about 224 days after the spring freeze cleared.
How long is the growing season in Viburnum?
Measured between 28°F hard freezes, Viburnum sees about 224 frost-free days — roughly Mar 27 through Nov 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 17 to Oct 23, about 189 days.
Is the soil safe to grow vegetables in Viburnum?
The federal record around Viburnum is a meaningful one — 57 documented sites, mostly Nitrate entries (20), the nearest Superfund record about 0.1 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 Viburnum?
From about Oct 7 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 6 (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 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Viburnum's scale — its 6b band and its 224-day season. Your yard writes its own version of Viburnum'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 Viburnum’s own scale
7 of the readings below were taken at Viburnum's own scale — its own ~224-day season between 28°F freezes, the 1,099 acres it covers and 57 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Viburnum's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Viburnum's own 28°F hard-freeze dates, about Mar 27 and Nov 6 and the ~224-day span between themNOAA 1991–2020 Climate Normals
- 57 documented contamination sites on the federal record near Viburnum, the closest Superfund record about 0.1 miles out from the town centreFederal environmental registers
- Viburnum's boundary and the 1,099 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~224-day seasonGrowable Ground crop-matching engine
- The ecoregion at Viburnum's own centroid, the Ozark HighlandsUS EPA Level III Ecoregions
- Lanternfly survey cells around Viburnum checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Viburnum's 1,099 acres read through its county's SSURGO summaryfrom Iron County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Iron County
- The growing challenges every Missouri grower plans around — written at state scale, so they stay on the state guidefrom Missouri
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Iron County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Viburnum's 1,099 acreswhy one lot differs from the next →
- Which side of Viburnum you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,099 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Superfund record about 0.1 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 Viburnum-wide figureread your own land →
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