Harrisonburg city, in Virginia, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, hazelnut, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Harrisonburg city lies within Appalachia — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Harrisonburg city holds more than one microclimate.
Soils and elevations shift across Harrisonburg city, so your frost dates and drainage aren't the county average. 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 Harrisonburg city — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Harrisonburg city — the short answer
Harrisonburg city, Virginia: USDA zone 7a, about 211 days between hard freezes, across 11K acres.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 2
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~211
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 11K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 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 Harrisonburg city's average, not your lot's — a low corner or a tree line moves it. Against Harrisonburg city's 211-day season, see what your own ground reads.
Heat in Harrisonburg city
Across a year, Harrisonburg city accumulates about 3,152 growing degree days above 50°F, about 582 fewer than the middle Virginia county — ahead of 24 of Virginia’s 133 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Harrisonburg County
Detailed USDA soil-survey (SSURGO) mapping is limited across Harrisonburg County, so there isn't a reliable county-wide soil summary to show here yet — a gap in the national survey, not in the ground itself.
Soil still varies lot by lot — soil types explained.
What this means for growing in Harrisonburg city
Each reading below is measured for Harrisonburg city itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHarrisonburg city runs about 211 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
MeasuredHarrisonburg city 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 Harrisonburg city is in
Harrisonburg city sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. One consistent ecological setting across the whole county.
What Grows in Harrisonburg city
We scored all 1,086 plants against Harrisonburg city's own USDA zone 7a and its own 211-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's Virginia profile.
Is it too late to plant in Harrisonburg city?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Harrisonburg city
Spotted lanternfly documented 3 miles from Harrisonburg city, first recorded 2022. What to watch for.
- Japanese beetle2 documented records
- monarch butterfly15 documented records
Sighting records, so they follow observers as much as insects.
Safe to Grow Here?
What the federal record shows across Harrisonburg County — and how to grow with it.
We checked the federal record across Harrisonburg County — 335 documented sites across 3 of the 9 source types we track.
The most significant on record: 26 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
There's a meaningful federal record across Harrisonburg County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Harrisonburg city
Closest first, across Harrisonburg County. Listing isn't leaking, and distance isn't exposure.
- Harrisonburg Food MartUnderground Storage Tanks · 1400 ft
- JAMES MADISON UNIVERSITYUnderground Storage Tanks · 1800 ft
- JMU - JAMES MADISON UNIVERSITYBrownfields · 1800 ft
- James Madison University North CampusUnderground Storage Tanks · 1800 ft
- ROYAL MOTOR COMPANYUnderground Storage Tanks · 2300 ft
- Harrisonburg Rescue SquadUnderground Storage Tanks · 2500 ft
- AMERIGASUnderground Storage Tanks · 2600 ft
- DWAYNE MUNAYUnderground Storage Tanks · 2600 ft
- PHILLIPS 66 CO #20452Underground Storage Tanks · 2600 ft
- Rockingham Coop Farm BureauUnderground Storage Tanks · 0.5 mi
- DBA RITE AID # 3642Brownfields · 0.5 mi
- SOUTHERN STATES COOPERATIVE INCORPORATEDToxics Release Inventory · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Harrisonburg city'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 Harrisonburg city.
Total Sites
335
across Harrisonburg County
Risk Level
Elevated
Highest-severity
26 Toxics Release Inventory facilities
Sources Checked
across Harrisonburg County
Severity Distribution
across Harrisonburg County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Harrisonburg city, two things run higher than the national average across Harrisonburg County — Toxics Release Inventory (26 sites) and Underground Storage Tanks (233 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Harrisonburg city
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 Harrisonburg city average
Your land is one point inside Harrisonburg city
Everything above resolves to Harrisonburg city as a whole — one PHZM band and one county 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 county 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 county average.
Your Lot vs the Harrisonburg city Average
Harrisonburg city Average
- ●USDA Zones 7a, averaged across Harrisonburg city
- ●One soil character for all of Harrisonburg city
- ●Frost dates read at Harrisonburg city's scale: Apr 2 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Harrisonburg city's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Harrisonburg city
Pull a site-specific report for your exact address in Harrisonburg city, Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Harrisonburg city averages can't show:
We read public map data around Harrisonburg city — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Harrisonburg city average
How we know this about Harrisonburg city
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Harrisonburg city carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Harrisonburg city
When does frost risk typically end in Harrisonburg city?
The last hard freeze (28°F) in Harrisonburg city typically lands around Apr 2, 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 23.
How long is the growing season in Harrisonburg city?
Measured between 28°F hard freezes, Harrisonburg city sees about 211 frost-free days — roughly Apr 2 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 16, about 176 days.
Is the soil safe to grow vegetables in Harrisonburg city?
The federal record around Harrisonburg city is a meaningful one — 335 documented sites, mostly Underground Storage Tanks entries (233), the nearest Underground Storage Tanks record about 0.3 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.
Everything above is measured at Harrisonburg city's scale — its 7a band and its 211-day season. Your yard writes its own version of Harrisonburg city's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Virginia's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Harrisonburg city’s own scale
7 of the readings below were taken at Harrisonburg city's own scale — its own ~211-day span between 28°F freezes and 335 documented sites inside its boundary; 2 are borrowed from a wider read, named and linked below.
Measured here
- Harrisonburg city's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Harrisonburg city's own 28°F hard-freeze dates and its ~211-day span between themNOAA 1991–2020 Climate Normals
- 335 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Underground Storage Tanks record about 0.3 miles outFederal environmental registers
- Harrisonburg city's boundary and the 11,095 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~211-day seasonGrowable Ground crop-matching engine
- Harrisonburg city sitting wholly inside the Ridge and ValleyUS EPA Level III Ecoregions
- Open occurrence records documented in Harrisonburg city for 2 tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
Inherited from a wider read
What this page can’t tell you
- How the season shifts across Harrisonburg city — the ~211 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Harrisonburg city's 11,095 acreswhy one lot differs from the next →
- Which of those 335 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Harrisonburg cityread your own land →