What Grows in Independent Hill, Virginia

USDA Zones 7a · 6K acres

Independent Hill, Virginia, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.

These conditions suit cabbage, hazelnut, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.

Score your parcel · free

Even in Independent Hill, 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 Independent Hill 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 Independent Hill — soil, climate, flood, and parcel records. How we handle your address.

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Independent Hill — the short answer

Independent Hill, Virginia: USDA zone 7a, about 222 days between hard freezes, across 6K acres of town.

USDA zone
7a
USDA PHZM 2023
Last hard freeze (28°F)
Mar 29
NOAA 1991–2020 Climate Normals, 28°F — this town
First hard freeze (28°F)
Nov 6
NOAA 1991–2020 Climate Normals, 28°F — this town
Days between freezes
~222
NOAA 1991–2020 Climate Normals, 28°F — this town
Town area
6K 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

7a7a
3a (Cold)13b (Hot)

Zone 7a is Independent Hill's average, not your lot's — a low corner or a tree line moves it. Against Independent Hill's 222-day season, see what your own ground reads.

Soil varies lot by lot — soil types explained.

What this means for growing in Independent Hill

Each reading below is measured for Independent Hill itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length

Measured

Independent Hill 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

Measured

Independent Hill 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 Independent Hill is in

Independent Hill sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Independent Hill's own centroid, and it is not what its county reads: Prince William County is mostly Northern Piedmont. The wider page above you is answering a different question about different ground.

What that means for soil

What Grows in Independent Hill

Every plant below cleared Independent Hill's own zone 7a and its 222-day season. Each card opens that plant's Virginia profile. How we score.

cabbage, photograph
Growing cabbage in VirginiaZones 2–11Independent Hill's 7a — 5 zones of cold margin.
hazelnut, photograph
Virginia hazelnut guideZones 4–9Independent Hill's 7a — 3 zones of cold margin.
California poppy, photograph
California poppy in VirginiaZones 6–10Independent Hill's 7a — 1 zone of cold margin.
collard greens, photograph
Collard greens: Virginia growing notesZones 2–11Independent Hill's 7a — 5 zones of cold margin.
pawpaw, photograph
Growing pawpaw in VirginiaZones 5–9Independent Hill's 7a — 2 zones of cold margin.
lavender, photograph
Virginia lavender guideZones 5–8Independent Hill's 7a — 2 zones of cold margin.
garlic, photograph
Garlic in VirginiaZones 2–10Independent Hill's 7a — 5 zones of cold margin.
pecan, photograph
Pecan: Virginia growing notesZones 5–9Independent Hill's 7a — 2 zones of cold margin.
Turkish rocket, photograph
Growing turkish rocket in VirginiaIndependent Hill's 222 days clear the ~90 it needs.
kale, photograph
Virginia kale guideZones 2–11Independent Hill's 7a — 5 zones of cold margin.
prickly pear, photograph
Prickly pear in VirginiaZones 5–10Independent Hill's 7a — 2 zones of cold margin.
lentil, photograph
Lentil: Virginia growing notesZones 2–11Independent Hill's 222 days clear the ~70 it needs.
apple, photograph
Growing apple in VirginiaZones 3–8Independent Hill's 7a — 4 zones of cold margin.
okra, photograph
Virginia okra guideZones 2–12Independent Hill's 222 days clear the ~50 it needs.
potato, photograph
Potato in VirginiaZones 2–11Independent Hill's 7a — 5 zones of cold margin.
iris, photograph
Iris: Virginia growing notesZones 3–10Independent Hill's 7a — 4 zones of cold margin.
sunflower, photograph
Growing sunflower in VirginiaZones 2–11Independent Hill's 222 days clear the ~70 it needs.
Apache plume, photograph
Virginia apache plume guideZones 5–11Independent Hill's 7a — 2 zones of cold margin.
hops, photograph
Hops in VirginiaZones 3–8Independent Hill's 7a — 4 zones of cold margin.
hosta, photograph
Hosta: Virginia growing notesZones 3–8Independent Hill's 7a — 4 zones of cold margin.
French marigold, photograph
Growing french marigold in VirginiaIndependent Hill's 222 days clear the ~50 it needs.
holly, photograph
Virginia holly guideZones 5–11Independent Hill's 7a — 2 zones of cold margin.
Virginia creeper, photograph
Virginia creeper in VirginiaZones 3–9Independent Hill's 7a — 4 zones of cold margin.
tulip, photograph
Tulip: Virginia growing notesZones 6–8Independent Hill's 7a — 1 zone of cold margin.
American elm, photograph
Growing american elm in VirginiaZones 3–9Independent Hill's 7a — 4 zones of cold margin.
Ethiopian mustard, photograph
Virginia ethiopian mustard guideZones 4–10Independent Hill's 7a — 3 zones of cold margin.
Kentucky bluegrass, botanical illustration
Kentucky bluegrass in VirginiaZones 2–7Independent Hill's 7a — 5 zones of cold margin.
Douglas fir, photograph
Douglas fir: Virginia growing notesZones 4–10Independent Hill's 7a — 3 zones of cold margin.
Japanese millet, photograph
Growing japanese millet in VirginiaZones 5–10Independent Hill's 222 days clear the ~45 it needs.
Eastern gamagrass, photograph
Virginia eastern gamagrass guideZones 5–9Independent Hill's 7a — 2 zones of cold margin.

Is it too late to plant in Independent Hill?

Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 6 — 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 Independent Hill

Spotted lanternfly documented 1 miles from Independent Hill, first recorded 2022. What to watch for.

What's on the federal record near Independent Hill

Closest first, within ~10 miles of Independent Hill. Listing isn't leaking, and distance isn't exposure.

  1. Prince William County Sanitary LandfillUnderground Storage Tanks · 0.6 mi
  2. EXXON CO USA #20701Brownfields · 0.7 mi
  3. Bus Operations Center CentralUnderground Storage Tanks · 0.7 mi
  4. PRINCE WILLIAM COUNTY SANITARY LANDFILLBrownfields · 0.7 mi
  5. VSP - AREA 11 OFFICE - INDEPENDENT HILLUnderground Storage Tanks · 0.7 mi
  6. PRINCE WILLIAM CTY-DEPT OF PUBLIC WKSBrownfields · 0.9 mi
  7. WASTE MANAGEMENTUnderground Storage Tanks · 0.9 mi
  8. SAMSKY S MARKETUnderground Storage Tanks · 0.9 mi
  9. Independent Hill - RMLRUnderground Storage Tanks · 0.9 mi
  10. PWCS - CHARLES J. COLGAN HIGH SCHOOLBrownfields · 1.1 mi
  11. Charlie Bob s Market and DeliUnderground Storage Tanks · 1.2 mi
  12. AT & T-INDEPENDENT HILL-VA2200Brownfields · 1.2 mi

6 more sites are on the record inside the same radius. See them on the map

Measured from Independent Hill'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 Independent Hill.

Total Sites

860

within ~10 miles of Independent Hill

Risk Level

Elevated

Highest-severity

2 Superfund sites (none NPL-listed)

Severity Distribution

within ~10 miles of Independent Hill

High6Moderate217Low637

Highest-Severity Sites

Cabin Branch Mine
Mining Sites · Past Producer
Cabin Branch Mine
Mining Sites · Past Producer
Dale City
PFAS Sampling · PFAS Detected
Manassas Park, City of
PFAS Sampling · PFAS Detected
Manassas, City of
PFAS Sampling · PFAS Detected

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.
Free Report

Check your specific parcel in Independent Hill

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 Independent Hill average

Your land is one point inside Independent Hill

Everything above resolves to Independent Hill as a whole — one PHZM band and one 28°F frost record, read across 6K 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 Independent Hill Average

Independent Hill Average

  • USDA Zones 7a, averaged across Independent Hill
  • One soil character for all of Independent Hill
  • Frost dates read at Independent Hill's scale: Mar 29 to Nov 6

YOUR Parcel

  • Your exact zone, not Independent Hill's 7a
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Independent Hill

Pull a site-specific report for your exact address in Independent Hill, Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your lot that Independent Hill averages can't show:

Your soil pHYour frost-free days — Independent Hill averages 222Your sun & shade

We read public map data around Independent Hill — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the Independent Hill average

How we know this about Independent Hill

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 Independent Hill’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 Independent Hill

When does frost risk typically end in Independent Hill?

The last hard freeze (28°F) in Independent Hill typically lands around Mar 29, 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 19.

When is the first frost in Independent Hill?

The first hard freeze (28°F) in Independent Hill typically arrives around Nov 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 23, so the watching starts about Oct 7 — about 222 days after the spring freeze cleared.

How long is the growing season in Independent Hill?

Measured between 28°F hard freezes, Independent Hill sees about 222 frost-free days — roughly Mar 29 through Nov 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 23, about 187 days.

Is the soil safe to grow vegetables in Independent Hill?

The federal record around Independent Hill is a meaningful one — 860 documented sites, mostly Underground Storage Tanks entries (441), the nearest Underground Storage Tanks record about 0.6 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 Independent Hill?

From about Oct 7 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 6 (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 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.

Everything above is measured at Independent Hill's scale — its 7a band and its 222-day season. Your yard writes its own version of Independent Hill'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 Independent Hill’s own scale

7 of the readings below were taken at Independent Hill's own scale — its own ~222-day season between 28°F freezes, the 5,702 acres it covers and 860 documented sites around it; 4 are borrowed from a wider read, named and linked below.

Measured here

  • Independent Hill's own USDA hardiness band, zones 7aUSDA PHZM 2023
  • Independent Hill's own 28°F hard-freeze dates, about Mar 29 and Nov 6 and the ~222-day span between themNOAA 1991–2020 Climate Normals
  • 860 documented contamination sites on the federal record near Independent Hill, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
  • Independent Hill's boundary and the 5,702 acres inside itUS Census TIGER/Line 2025
  • Which of 1,086 plants clear zones 7a and a ~222-day seasonGrowable Ground crop-matching engine
  • Independent Hill sits in the Piedmont — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
  • A documented spotted-lanternfly record within reach of Independent Hilllydemapr (De Bona & Helmus), 10 km survey lattice

Inherited from a wider read

  • Soil character — no town-scale survey exists, so Independent Hill's 5,702 acres read through its county's SSURGO summaryfrom Prince William County
  • Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Prince William County
  • The growing challenges every Virginia grower plans around — written at state scale, so they stay on the state guidefrom Virginia
  • Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Prince William County

What this page can’t tell you

  • The soil pH, drainage, sun hours, and frost pockets on any one lot among Independent Hill's 5,702 acreswhy one lot differs from the next
  • Which side of Independent Hill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,702 acresreading your own microclimate
  • How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.6 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 Independent Hill-wide figureread your own land
The next step finer is your own address

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