Rosedale, Maryland, sits in USDA hardiness zone 8a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Among the crops suited to this profile: cabbage, fig, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Rosedale, 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 Rosedale 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 Rosedale — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Rosedale — the short answer
Rosedale, Maryland: USDA zone 8a, about 262 days between hard freezes, across 4K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~262
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K 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 8a is Rosedale's average, not your lot's — a low corner or a tree line moves it. Against Rosedale's 262-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Rosedale
Each reading below is measured for Rosedale itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRosedale runs about 262 days between hard freezes — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredRosedale sits in USDA hardiness zone 8a.
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 Rosedale is in
Rosedale sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Rosedale's own centroid, and it is not what its county reads: Baltimore County is mostly Northern Piedmont. The wider page above you is answering a different question about different ground.
What Grows in Rosedale
Every plant below cleared Rosedale's own zone 8a and its 262-day season. Each card opens that plant's Maryland profile. How we score.
Is it too late to plant in Rosedale?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
Documented around Rosedale
Spotted lanternfly documented 4 miles from Rosedale, first recorded 2019. What to watch for.
What's on the federal record near Rosedale
Closest first, within ~10 miles of Rosedale. Listing isn't leaking, and distance isn't exposure.
- Earlbeck CorporationUnderground Storage Tanks · 2100 ft
- Stewart RootbeerUnderground Storage Tanks · 2100 ft
- Hudak's InsulationUnderground Storage Tanks · 2100 ft
- Max F. ZarembaUnderground Storage Tanks · 2200 ft
- RAINBOW LITHOGRAPHY OF MARYLANDToxics Release Inventory · 2200 ft
- ROSEDALE BUS FACILTYBrownfields · 2200 ft
- CHESAPEAKE ENVIRONMENTAL INCBrownfields · 2300 ft
- Orems GarageUnderground Storage Tanks · 2300 ft
- WUTZERS GARAGEBrownfields · 2400 ft
- FAMILY DOLLAR #4609Brownfields · 2400 ft
- Rosedale Bus FacilityUnderground Storage Tanks · 2500 ft
- BALTIMORE-ENNIS LAND COMPANYBrownfields · 2500 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Rosedale'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 Rosedale.
Sources Checked
within ~10 miles of Rosedale
Severity Distribution
within ~10 miles of Rosedale
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 Rosedale
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 Rosedale average
Your land is one point inside Rosedale
Everything above resolves to Rosedale as a whole — one PHZM band and one 28°F frost record, read across 4K 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 Rosedale Average
Rosedale Average
- ●USDA Zones 8a, averaged across Rosedale
- ●One soil character for all of Rosedale
- ●Frost dates read at Rosedale's scale: Mar 12 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Rosedale's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Rosedale
Pull a site-specific report for your exact address in Rosedale, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Rosedale averages can't show:
We read public map data around Rosedale — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Rosedale average
How we know this about Rosedale
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 Rosedale’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 Rosedale
When does frost risk typically end in Rosedale?
The last hard freeze (28°F) in Rosedale typically lands around Mar 12, 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 2.
When is the first frost in Rosedale?
The first hard freeze (28°F) in Rosedale typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 262 days after the spring freeze cleared.
How long is the growing season in Rosedale?
Measured between 28°F hard freezes, Rosedale sees about 262 frost-free days — roughly Mar 12 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 2 to Nov 15, about 227 days.
Is the soil safe to grow vegetables in Rosedale?
The federal record around Rosedale runs heavier than most — 4,390 documented sites, mostly Underground Storage Tanks entries (2,074), the nearest Underground Storage Tanks record about 0.4 miles 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 Rosedale?
From about Oct 30 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Rosedale's scale — its 8a band and its 262-day season. Your yard writes its own version of Rosedale'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 Rosedale’s own scale
7 of the readings below were taken at Rosedale's own scale — its own ~262-day season between 28°F freezes, the 4,392 acres it covers and 4,390 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Rosedale's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Rosedale's own 28°F hard-freeze dates, about Mar 12 and Nov 29 and the ~262-day span between themNOAA 1991–2020 Climate Normals
- 4,390 documented contamination sites on the federal record near Rosedale, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Rosedale's boundary and the 4,392 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~262-day seasonGrowable Ground crop-matching engine
- Rosedale sits in the Southeastern Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Rosedalelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Rosedale's 4,392 acres read through its county's SSURGO summaryfrom Baltimore County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Baltimore 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 Baltimore County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Rosedale's 4,392 acreswhy one lot differs from the next →
- Which side of Rosedale you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,392 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 Rosedale-wide figureread your own land →
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