Seat Pleasant, Maryland, sits in USDA hardiness zones 6a-7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Among the crops suited to this profile: tomato, black-eyed susan, peach, and sweet corn. The site-level story — soil, sun, drainage — decides the rest.
Even in Seat Pleasant, 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 Seat Pleasant lot. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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Quick Facts
USDA Zones
6a-7b
Last Hard Freeze (28°F)
Mar 8
Town normal — light frosts run a few weeks later
First Hard Freeze (28°F)
Dec 9
Town normal — light frosts arrive a few weeks earlier
City Area
520 acres
Hardiness Zone Range
Zone maps are averages across Seat Pleasant. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.
Soil varies lot by lot — soil types explained.
What Grows in Seat Pleasant
Plants matched to Seat Pleasant's USDA zones 6a-7b — each links to its full growing profile.





Is it too late to plant in Seat Pleasant?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 9 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.

Growing Challenges in Maryland
What an experienced grower plans around here — each one has a move.

Heavy Piedmont clay drains poorly
A raised bed today, compost every fall — Piedmont clay becomes an asset once the drainage is yours.

Humidity and heat in summer promote disease
Morning watering at the base, room to breathe between plants, resistant varieties — the humid-summer basics, per your extension.

Deer pressure in suburban areas is extreme
A tall fence is the answer that holds; for everything outside it, lean toward the plants deer reliably skip.
For cultivar selection, pest pressure, and planting-time guidance specific to Maryland, the University of Maryland Extension is the authoritative local source.
Environmental Intelligence
Understanding what's nearby helps you make informed decisions about where and how to grow.
Sources Checked
within ~10 miles of Seat Pleasant
Severity Distribution
within ~10 miles of Seat Pleasant
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Seat Pleasant, Superfund runs higher than the national average — 67 sites nearby. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Seat Pleasant
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Your Specific Parcel Matters
Seat Pleasant Average
- ●USDA Zones 6a-7b
- ●Generic soil type for the area
- ●State-average frost dates
YOUR Parcel
- ✓Your exact hardiness zone
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Seat Pleasant
Pull a site-specific report for your exact address in Seat Pleasant, Maryland — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Key Growing Facts for Seat Pleasant, Maryland
- USDA Hardiness Zones: 6a-7b (USDA PHZM 2023)
- Last Hard Freeze (28°F): Mar 8 (town normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
- First Hard Freeze (28°F): Dec 9 (town normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
- Days Between Hard Freezes: ~276 (town normal, NOAA 1991–2020 Climate Normals)
- Land Area: 520 acres (US Census TIGER 2025)
Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. Boundaries: US Census TIGER/Line 2025.
Frequently Asked Questions
What hardiness zone is Seat Pleasant, Maryland?
Seat Pleasant sits in USDA hardiness zones 6a-7b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
Is it too late to plant in Seat Pleasant?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 9 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
When does frost risk typically end in Seat Pleasant?
The last hard freeze (28°F) in Seat Pleasant typically lands around Mar 8, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
When is the first frost in Seat Pleasant?
The first hard freeze (28°F) in Seat Pleasant typically arrives around Dec 9, per NOAA 1991–2020 climate normals — the point most tender summer crops finish. Lighter frosts usually reach a couple of weeks earlier, so watch the forecast from late summer on and harvest or cover tender plants before the first cold night.
What vegetables grow in Seat Pleasant?
Seat Pleasant's zones 6a-7b support a wide range — strong performers include Tomato, Black-eyed Susan, Peach, Sweet Corn, and Crab Apple. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.
Which hardiness zone is Seat Pleasant, really?
Officially, Seat Pleasant sits in USDA zones 6a-7b (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.
Is the soil safe to grow vegetables in Seat Pleasant?
The federal record around Seat Pleasant runs heavier than most — 4,833 documented sites — 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 Seat Pleasant?
As the season closes around the first 28°F hard freeze near Dec 9 (NOAA 1991–2020 climate normals), a few moves buy time: cover tender plants with floating row cover or an old sheet on still, clear nights, water the soil the afternoon before a freeze so it holds warmth overnight, and harvest frost-tender crops like tomatoes, peppers, and basil before the first hard night. Hardy greens and root crops shrug off light frost and often sweeten after it, so leave them in.
Everything on this page is a Seat Pleasant average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.
