Trego-Rohrersville Station, Maryland, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
The conditions favor cabbage, hazelnut, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Trego-Rohrersville Station, 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 Trego-Rohrersville Station 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 Trego-Rohrersville Station — soil, climate, flood, and parcel records. How we handle your address.
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Trego-Rohrersville Station — the short answer
Trego-Rohrersville Station, Maryland: USDA zone 7a, about 214 days between hard freezes, across 273 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- 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
- ~214
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 273 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 7a is Trego-Rohrersville Station's average, not your lot's — a low corner or a tree line moves it. Against Trego-Rohrersville Station's 214-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Trego-Rohrersville Station
Each reading below is measured for Trego-Rohrersville Station itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTrego-Rohrersville Station runs about 214 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
MeasuredTrego-Rohrersville Station sits in USDA hardiness zone 7a.
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 Trego-Rohrersville Station is in
Trego-Rohrersville Station sits in the Blue Ridge — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Trego-Rohrersville Station's own centroid, and it is not what its county reads: Washington County is mostly Ridge and Valley. The wider page above you is answering a different question about different ground.
What Grows in Trego-Rohrersville Station
Every plant below cleared Trego-Rohrersville Station's own zone 7a and its 214-day season. Each card opens that plant's Maryland profile. How we score.
Is it too late to plant in Trego-Rohrersville Station?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (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 Trego-Rohrersville Station
Spotted lanternfly documented 3 miles from Trego-Rohrersville Station, first recorded 2019. What to watch for.
What's on the federal record near Trego-Rohrersville Station
Closest first, within ~10 miles of Trego-Rohrersville Station. Listing isn't leaking, and distance isn't exposure.
- Old Keedysville Train StationUnderground Storage Tanks · 1200 ft
- WA Di 5Nitrate · 0.5 mi
- Millbrook MarketUnderground Storage Tanks · 0.8 mi
- K & M GroceryUnderground Storage Tanks · 2.0 mi
- BOONSBORO - KEEDYSVILLEPFAS · 2.3 mi
- DWIGHT BRANDENBURG/BRANDENBURG FAMILY LIMITED PARTNERSHIPCAFO · 2.7 mi
- George J. KarnUnderground Storage Tanks · 3.5 mi
- WA Di 10Nitrate · 3.5 mi
- Milburn PropertyUnderground Storage Tanks · 3.5 mi
- WA Di 199Nitrate · 3.6 mi
- WA Di 11Nitrate · 3.7 mi
- Antietam Wastewater Treatment PlantUnderground Storage Tanks · 3.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Trego-Rohrersville Station'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 Trego-Rohrersville Station.
Total Sites
621
within ~10 miles of Trego-Rohrersville Station
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Trego-Rohrersville Station
Severity Distribution
within ~10 miles of Trego-Rohrersville Station
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Trego-Rohrersville Station, Nitrate runs higher than the national average — 408 sites within ~10 miles of Trego-Rohrersville Station. 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 Trego-Rohrersville Station
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 Trego-Rohrersville Station average
Your land is one point inside Trego-Rohrersville Station
Everything above resolves to Trego-Rohrersville Station as a whole — one PHZM band and one 28°F frost record, read across 273 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 Trego-Rohrersville Station Average
Trego-Rohrersville Station Average
- ●USDA Zones 7a, averaged across Trego-Rohrersville Station
- ●One soil character for all of Trego-Rohrersville Station
- ●Frost dates read at Trego-Rohrersville Station's scale: Apr 3 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Trego-Rohrersville Station's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Trego-Rohrersville Station
Pull a site-specific report for your exact address in Trego-Rohrersville Station, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Trego-Rohrersville Station averages can't show:
We read public map data around Trego-Rohrersville Station — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Trego-Rohrersville Station average
How we know this about Trego-Rohrersville Station
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 Trego-Rohrersville Station’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 Trego-Rohrersville Station
When does frost risk typically end in Trego-Rohrersville Station?
The last hard freeze (28°F) in Trego-Rohrersville Station typically lands around Apr 3, 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 24.
When is the first frost in Trego-Rohrersville Station?
The first hard freeze (28°F) in Trego-Rohrersville Station 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 214 days after the spring freeze cleared.
How long is the growing season in Trego-Rohrersville Station?
Measured between 28°F hard freezes, Trego-Rohrersville Station sees about 214 frost-free days — roughly Apr 3 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 20, about 179 days.
Is the soil safe to grow vegetables in Trego-Rohrersville Station?
The federal record around Trego-Rohrersville Station is a meaningful one — 621 documented sites, mostly Nitrate entries (408), the nearest Underground Storage Tanks record about 0.2 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 Trego-Rohrersville Station?
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 Trego-Rohrersville Station's scale — its 7a band and its 214-day season. Your yard writes its own version of Trego-Rohrersville Station'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 Trego-Rohrersville Station’s own scale
7 of the readings below were taken at Trego-Rohrersville Station's own scale — its own ~214-day season between 28°F freezes, the 273 acres it covers and 621 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Trego-Rohrersville Station's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Trego-Rohrersville Station's own 28°F hard-freeze dates, about Apr 3 and Nov 3 and the ~214-day span between themNOAA 1991–2020 Climate Normals
- 621 documented contamination sites on the federal record near Trego-Rohrersville Station, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Trego-Rohrersville Station's boundary and the 273 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~214-day seasonGrowable Ground crop-matching engine
- Trego-Rohrersville Station sits in the Blue Ridge — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Trego-Rohrersville Stationlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Trego-Rohrersville Station's 273 acres read through its county's SSURGO summaryfrom Washington County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Washington County
- The growing challenges every Maryland grower plans around — written at state scale, so they stay on the state guidefrom Maryland
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Washington County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Trego-Rohrersville Station's 273 acreswhy one lot differs from the next →
- Which side of Trego-Rohrersville Station you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 273 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Trego-Rohrersville Station-wide figureread your own land →