Huntingtown, Maryland, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
These conditions suit cabbage, prickly pear, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Huntingtown, 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 Huntingtown 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 Huntingtown — soil, climate, flood, and parcel records. How we handle your address.
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Huntingtown — the short answer
Huntingtown, Maryland: USDA zone 7b, about 243 days between hard freezes, across 5K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~243
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 7b is Huntingtown's average, not your lot's — a low corner or a tree line moves it. Against Huntingtown's 243-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Huntingtown
Each reading below is measured for Huntingtown itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHuntingtown runs about 243 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
MeasuredHuntingtown sits in USDA hardiness zone 7b.
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 Huntingtown is in
Huntingtown sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Huntingtown's own centroid rather than borrowed from Calvert County.
What Grows in Huntingtown
Every plant below cleared Huntingtown's own zone 7b and its 243-day season. Each card opens that plant's Maryland profile. How we score.
Is it too late to plant in Huntingtown?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 23 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 21 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Huntingtown
Spotted lanternfly documented 5 miles from Huntingtown, first recorded 2022. What to watch for.
What's on the federal record near Huntingtown
Closest first, within ~10 miles of Huntingtown. Listing isn't leaking, and distance isn't exposure.
- Mattingly's Inc.Underground Storage Tanks · 2000 ft
- Leroy E. BerryUnderground Storage Tanks · 2000 ft
- Clark Rawlings GulfUnderground Storage Tanks · 2000 ft
- J. Wesley Jones Bus ServiceUnderground Storage Tanks · 2600 ft
- Bowen's GroceryUnderground Storage Tanks · 0.5 mi
- Company 6, HuntingtownUnderground Storage Tanks · 0.6 mi
- H. B. Trueman LumberUnderground Storage Tanks · 0.7 mi
- TRACTOR SUPPLY COMPANY 2024Brownfields · 0.9 mi
- Alameda SubdivisionUnderground Storage Tanks · 0.9 mi
- Game Time Wine & SpiritsUnderground Storage Tanks · 0.9 mi
- GOLDEN WHIPBrownfields · 1.2 mi
- SHA BRIDGE #0400200Brownfields · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Huntingtown'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 Huntingtown.
Total Sites
363
within ~10 miles of Huntingtown
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Huntingtown
Severity Distribution
within ~10 miles of Huntingtown
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Huntingtown, Nitrate runs higher than the national average — 130 sites within ~10 miles of Huntingtown. 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 Huntingtown
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 Huntingtown average
Your land is one point inside Huntingtown
Everything above resolves to Huntingtown as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Huntingtown Average
Huntingtown Average
- ●USDA Zones 7b, averaged across Huntingtown
- ●One soil character for all of Huntingtown
- ●Frost dates read at Huntingtown's scale: Mar 23 to Nov 21
YOUR Parcel
- ✓Your exact zone, not Huntingtown's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Huntingtown
Pull a site-specific report for your exact address in Huntingtown, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Huntingtown averages can't show:
We read public map data around Huntingtown — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Huntingtown average
How we know this about Huntingtown
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 Huntingtown’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 Huntingtown
When does frost risk typically end in Huntingtown?
The last hard freeze (28°F) in Huntingtown typically lands around Mar 23, 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 13.
When is the first frost in Huntingtown?
The first hard freeze (28°F) in Huntingtown typically arrives around Nov 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 7, so the watching starts about Oct 22 — about 243 days after the spring freeze cleared.
How long is the growing season in Huntingtown?
Measured between 28°F hard freezes, Huntingtown sees about 243 frost-free days — roughly Mar 23 through Nov 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 13 to Nov 7, about 208 days.
Is the soil safe to grow vegetables in Huntingtown?
The federal record around Huntingtown is a meaningful one — 363 documented sites, mostly Underground Storage Tanks entries (168), the nearest Underground Storage Tanks record about 0.4 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 Huntingtown?
From about Oct 22 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Huntingtown's scale — its 7b band and its 243-day season. Your yard writes its own version of Huntingtown'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 Huntingtown’s own scale
7 of the readings below were taken at Huntingtown's own scale — its own ~243-day season between 28°F freezes, the 5,165 acres it covers and 363 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Huntingtown's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Huntingtown's own 28°F hard-freeze dates, about Mar 23 and Nov 21 and the ~243-day span between themNOAA 1991–2020 Climate Normals
- 363 documented contamination sites on the federal record near Huntingtown, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Huntingtown's boundary and the 5,165 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~243-day seasonGrowable Ground crop-matching engine
- The ecoregion at Huntingtown's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Huntingtownlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Huntingtown's 5,165 acres read through its county's SSURGO summaryfrom Calvert County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Calvert 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 Calvert County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Huntingtown's 5,165 acreswhy one lot differs from the next →
- Which side of Huntingtown you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,165 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Huntingtown-wide figureread your own land →
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