Glen Burnie, Maryland, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Glen Burnie, 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 Glen Burnie 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 Glen Burnie — soil, climate, flood, and parcel records. How we handle your address.
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Glen Burnie — the short answer
Glen Burnie, Maryland: USDA zone 7b, about 257 days between hard freezes, across 11K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~257
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 11K 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 Glen Burnie's average, not your lot's — a low corner or a tree line moves it. Against Glen Burnie's 257-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glen Burnie
Each reading below is measured for Glen Burnie itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGlen Burnie runs about 257 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
MeasuredGlen Burnie 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 Glen Burnie is in
Glen Burnie sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glen Burnie's own centroid rather than borrowed from Anne Arundel County.
What Grows in Glen Burnie
Every plant below cleared Glen Burnie's own zone 7b and its 257-day season. Each card opens that plant's Maryland profile. How we score.
Is it too late to plant in Glen Burnie?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 27 — 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 Glen Burnie
Spotted lanternfly documented 2 miles from Glen Burnie, first recorded 2021. What to watch for.
What's on the federal record near Glen Burnie
Closest first, within ~10 miles of Glen Burnie. Listing isn't leaking, and distance isn't exposure.
- CLEAN FUELS ASSOCIATESBrownfields · 400 ft
- Gulf Station MD-101Underground Storage Tanks · 500 ft
- P & K CLEANERSBrownfields · 750 ft
- Shell Oil Products - 219-3744-02Underground Storage Tanks · 1600 ft
- SHA BRIDGE 0207400Brownfields · 1900 ft
- Boies MotorsUnderground Storage Tanks · 2200 ft
- Amoco Oil CompanyUnderground Storage Tanks · 2400 ft
- Country Club AutomotiveUnderground Storage Tanks · 2600 ft
- AA Bd 6Nitrate · 2600 ft
- Furnace Branch AtomocoUnderground Storage Tanks · 0.5 mi
- GLEN BURNIE SENIOR HIGH SCHOOLBrownfields · 0.6 mi
- FAMILY DOLLAR #7848Brownfields · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glen Burnie'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 Glen Burnie.
Sources Checked
within ~10 miles of Glen Burnie
Severity Distribution
within ~10 miles of Glen Burnie
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Glen Burnie
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 Glen Burnie average
Your land is one point inside Glen Burnie
Everything above resolves to Glen Burnie as a whole — one PHZM band and one 28°F frost record, read across 11K 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 Glen Burnie Average
Glen Burnie Average
- ●USDA Zones 7b, averaged across Glen Burnie
- ●One soil character for all of Glen Burnie
- ●Frost dates read at Glen Burnie's scale: Mar 15 to Nov 27
YOUR Parcel
- ✓Your exact zone, not Glen Burnie's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glen Burnie
Pull a site-specific report for your exact address in Glen Burnie, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glen Burnie averages can't show:
We read public map data around Glen Burnie — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glen Burnie average
How we know this about Glen Burnie
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 Glen Burnie’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 Glen Burnie
When does frost risk typically end in Glen Burnie?
The last hard freeze (28°F) in Glen Burnie typically lands around Mar 15, 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 5.
When is the first frost in Glen Burnie?
The first hard freeze (28°F) in Glen Burnie typically arrives around Nov 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 13, so the watching starts about Oct 28 — about 257 days after the spring freeze cleared.
How long is the growing season in Glen Burnie?
Measured between 28°F hard freezes, Glen Burnie sees about 257 frost-free days — roughly Mar 15 through Nov 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Nov 13, about 222 days.
Is the soil safe to grow vegetables in Glen Burnie?
The federal record around Glen Burnie runs heavier than most — 3,640 documented sites, mostly Underground Storage Tanks entries (1,608), the nearest Brownfields record under a tenth of a mile out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Glen Burnie?
From about Oct 28 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Glen Burnie's scale — its 7b band and its 257-day season. Your yard writes its own version of Glen Burnie'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 Glen Burnie’s own scale
7 of the readings below were taken at Glen Burnie's own scale — its own ~257-day season between 28°F freezes, the 11,080 acres it covers and 3,640 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Glen Burnie's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Glen Burnie's own 28°F hard-freeze dates, about Mar 15 and Nov 27 and the ~257-day span between themNOAA 1991–2020 Climate Normals
- 3,640 documented contamination sites on the federal record near Glen Burnie, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Glen Burnie's boundary and the 11,080 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~257-day seasonGrowable Ground crop-matching engine
- The ecoregion at Glen Burnie's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Glen Burnielydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Glen Burnie's 11,080 acres read through its county's SSURGO summaryfrom Anne Arundel County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Anne Arundel 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 Anne Arundel County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Glen Burnie's 11,080 acreswhy one lot differs from the next →
- Which side of Glen Burnie you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 11,080 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Glen Burnie-wide figureread your own land →
More in Maryland
Wider growing context
What grows across MarylandGlen Burnie sits outside our named growing regions, so Maryland as a whole is its closest context here.
Nearby growing guides