Reid, Maryland, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Reid, 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 Reid 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 Reid — soil, climate, flood, and parcel records. How we handle your address.
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Reid — the short answer
Reid, Maryland: USDA zone 7a, about 222 days between hard freezes, across 80 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~222
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 80 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 Reid's average, not your lot's — a low corner or a tree line moves it. Against Reid's 222-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Reid
Each reading below is measured for Reid itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredReid runs about 222 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
MeasuredReid 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 Reid is in
Reid sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Reid's own centroid rather than borrowed from Washington County.
What Grows in Reid
Every plant below cleared Reid's own zone 7a and its 222-day season. Each card opens that plant's Maryland profile. How we score.
Is it too late to plant in Reid?
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 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 31 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 8 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Reid
Spotted lanternfly documented 2 miles from Reid, first recorded 2020. What to watch for.
What's on the federal record near Reid
Closest first, within ~10 miles of Reid. Listing isn't leaking, and distance isn't exposure.
- Cadia Healthcare-HagerstownUnderground Storage Tanks · 0.8 mi
- Baer's Garage, Inc.Underground Storage Tanks · 1.2 mi
- FR 525Nitrate · 1.3 mi
- WA Ai 4Nitrate · 1.3 mi
- WA Aj 75Nitrate · 1.5 mi
- WA Ai 56Nitrate · 1.6 mi
- WA Ai 1Nitrate · 2.0 mi
- Fr 537Nitrate · 2.0 mi
- Hi-Value Service Station/Pam's Gas N Go Inc.Underground Storage Tanks · 2.1 mi
- FULTON L GSELL EXCAVATINGUnderground Storage Tanks · 2.1 mi
- MARMEC FARMINGUnderground Storage Tanks · 2.1 mi
- WPS Inc.Underground Storage Tanks · 2.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Reid'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 Reid.
Sources Checked
within ~10 miles of Reid
Severity Distribution
within ~10 miles of Reid
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Reid, CAFO runs higher than the national average — 9 sites within ~10 miles of Reid. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Reid
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 Reid average
Your land is one point inside Reid
Everything above resolves to Reid as a whole — one PHZM band and one 28°F frost record, read across 80 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 Reid Average
Reid Average
- ●USDA Zones 7a, averaged across Reid
- ●One soil character for all of Reid
- ●Frost dates read at Reid's scale: Mar 31 to Nov 8
YOUR Parcel
- ✓Your exact zone, not Reid's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Reid
Pull a site-specific report for your exact address in Reid, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Reid averages can't show:
We read public map data around Reid — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Reid average
How we know this about Reid
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 Reid’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 Reid
When does frost risk typically end in Reid?
The last hard freeze (28°F) in Reid typically lands around Mar 31, 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 21.
When is the first frost in Reid?
The first hard freeze (28°F) in Reid typically arrives around Nov 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 25, so the watching starts about Oct 9 — about 222 days after the spring freeze cleared.
How long is the growing season in Reid?
Measured between 28°F hard freezes, Reid sees about 222 frost-free days — roughly Mar 31 through Nov 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 21 to Oct 25, about 187 days.
Is the soil safe to grow vegetables in Reid?
The federal record around Reid is a meaningful one — 979 documented sites, mostly Underground Storage Tanks entries (488), the nearest Underground Storage Tanks record about 0.8 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 Reid?
From about Oct 9 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Reid's scale — its 7a band and its 222-day season. Your yard writes its own version of Reid'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 Reid’s own scale
7 of the readings below were taken at Reid's own scale — its own ~222-day season between 28°F freezes, the 80 acres it covers and 979 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Reid's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Reid's own 28°F hard-freeze dates, about Mar 31 and Nov 8 and the ~222-day span between themNOAA 1991–2020 Climate Normals
- 979 documented contamination sites on the federal record near Reid, the closest Underground Storage Tanks record about 0.8 miles out from the town centreFederal environmental registers
- Reid's boundary and the 80 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~222-day seasonGrowable Ground crop-matching engine
- The ecoregion at Reid's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Reidlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Reid's 80 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 Reid's 80 acreswhy one lot differs from the next →
- Which side of Reid you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 80 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.8 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 Reid-wide figureread your own land →