Rhineland, Missouri, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with cabbage, hazelnut, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Rhineland, 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 Rhineland 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 Rhineland — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Rhineland — the short answer
Rhineland, Missouri: USDA zone 6b, about 219 days between hard freezes, across 216 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~219
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 216 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 Rhineland's average, not your lot's — a low corner or a tree line moves it. Against Rhineland's 219-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Rhineland
Each reading below is measured for Rhineland itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRhineland runs about 219 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
MeasuredRhineland 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 Rhineland is in
Rhineland sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Rhineland's own centroid rather than borrowed from Montgomery County.
What Grows in Rhineland
Every plant below cleared Rhineland's own zone 6b and its 219-day season. Each card opens that plant's Missouri profile. How we score.
Is it too late to plant in Rhineland?
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 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Rhineland
Survey cells within 31 miles of Rhineland checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 275 miles off. What to watch for.
What's on the federal record near Rhineland
Closest first, within ~10 miles of Rhineland. Listing isn't leaking, and distance isn't exposure.
- T46N R05W 30D 2Nitrate · 1700 ft
- T46N R05W 30DNitrate · 1800 ft
- RHINELAND OIL COUnderground Storage Tanks · 1900 ft
- T45N R05W 06AAB1Nitrate · 1.7 mi
- HAUSER FARM SUPPLYUnderground Storage Tanks · 3.5 mi
- T64N R05W 14CBB 11939Nitrate · 3.8 mi
- US ARMY CORPS OF ENGINEERSUnderground Storage Tanks · 3.9 mi
- GASCONADE BOAT YARDSuperfund · 4.0 mi
- T46N R05W 26DDB1Nitrate · 4.1 mi
- COOP ASSOCIATION #130Underground Storage Tanks · 4.2 mi
- HERMANN AREA HOSPITAL DISTRICTUnderground Storage Tanks · 4.2 mi
- U S CORP OF ENGINEERSBrownfields · 4.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Rhineland'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 Rhineland.
Total Sites
71
within ~10 miles of Rhineland
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Rhineland
Severity Distribution
within ~10 miles of Rhineland
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Rhineland, Nitrate runs higher than the national average — 28 sites within ~10 miles of Rhineland. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Rhineland
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 Rhineland average
Your land is one point inside Rhineland
Everything above resolves to Rhineland as a whole — one PHZM band and one 28°F frost record, read across 216 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 Rhineland Average
Rhineland Average
- ●USDA Zones 6b, averaged across Rhineland
- ●One soil character for all of Rhineland
- ●Frost dates read at Rhineland's scale: Mar 29 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Rhineland's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Rhineland
Pull a site-specific report for your exact address in Rhineland, Missouri — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Rhineland averages can't show:
We read public map data around Rhineland — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Rhineland average
How we know this about Rhineland
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 Rhineland’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 Rhineland
When does frost risk typically end in Rhineland?
The last hard freeze (28°F) in Rhineland typically lands around Mar 29, 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 19.
When is the first frost in Rhineland?
The first hard freeze (28°F) in Rhineland typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 219 days after the spring freeze cleared.
How long is the growing season in Rhineland?
Measured between 28°F hard freezes, Rhineland sees about 219 frost-free days — roughly Mar 29 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 20, about 184 days.
Is the soil safe to grow vegetables in Rhineland?
The federal record around Rhineland is a meaningful one — 71 documented sites, mostly Underground Storage Tanks entries (29), the nearest Nitrate record about 0.3 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 Rhineland?
From about Oct 4 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 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Rhineland's scale — its 6b band and its 219-day season. Your yard writes its own version of Rhineland'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 Rhineland’s own scale
7 of the readings below were taken at Rhineland's own scale — its own ~219-day season between 28°F freezes, the 216 acres it covers and 71 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Rhineland's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Rhineland's own 28°F hard-freeze dates, about Mar 29 and Nov 3 and the ~219-day span between themNOAA 1991–2020 Climate Normals
- 71 documented contamination sites on the federal record near Rhineland, the closest Nitrate record about 0.3 miles out from the town centreFederal environmental registers
- Rhineland's boundary and the 216 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~219-day seasonGrowable Ground crop-matching engine
- The ecoregion at Rhineland's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
- Lanternfly survey cells around Rhineland 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 Rhineland's 216 acres read through its county's SSURGO summaryfrom Montgomery County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Montgomery 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 Montgomery County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Rhineland's 216 acreswhy one lot differs from the next →
- Which side of Rhineland you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 216 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.3 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 Rhineland-wide figureread your own land →
More in Missouri
Wider growing context
What grows across MissouriRhineland sits outside our named growing regions, so Missouri as a whole is its closest context here.
Nearby growing guides