Sugar Grove, Virginia, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Among the crops suited to this profile: cabbage, pawpaw, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Sugar Grove, 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 Sugar Grove 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 Sugar Grove — soil, climate, flood, and parcel records. How we handle your address.
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Sugar Grove — the short answer
Sugar Grove, Virginia: USDA zone 7a, about 191 days between hard freezes, across 2K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~191
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Sugar Grove's average, not your lot's — a low corner or a tree line moves it. Against Sugar Grove's 191-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sugar Grove
Each reading below is measured for Sugar Grove itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredSugar Grove runs about 191 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals

Winter hardiness
MeasuredSugar Grove 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 Sugar Grove is in
Sugar Grove sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sugar Grove's own centroid rather than borrowed from Smyth County.
What Grows in Sugar Grove
Every plant below cleared Sugar Grove's own zone 7a and its 191-day season. Each card opens that plant's Virginia profile. How we score.






























Is it too late to plant in Sugar Grove?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Sugar Grove
Spotted lanternfly documented 22 miles from Sugar Grove, first recorded 2021. What to watch for.
What's on the federal record near Sugar Grove
Closest first, within ~10 miles of Sugar Grove. Listing isn't leaking, and distance isn't exposure.
- DGIF - SUGAR GROVE DEPOT / MOUNT ROGERS NRAUnderground Storage Tanks · 0.5 mi
- Ward, R.N., ProspectMining · 0.9 mi
- L.D. BLEVINS GAS STATIONUnderground Storage Tanks · 1.1 mi
- VDOT - Sugar Grove Area HeadquartersUnderground Storage Tanks · 1.2 mi
- Walter C Cox Farm OccurrenceMining · 1.2 mi
- PATTORDS SERVICE STATIONUnderground Storage Tanks · 1.2 mi
- D&R Service StationUnderground Storage Tanks · 1.2 mi
- BRUNSWICK CORP PLANT #4Underground Storage Tanks · 1.3 mi
- POOLE SER STAUnderground Storage Tanks · 1.3 mi
- Mountain View MartUnderground Storage Tanks · 1.3 mi
- R.N. Ward ProspectMining · 1.6 mi
- Rye Valley Lead/Zinc DistrictMining · 1.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sugar Grove'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 Sugar Grove.
Total Sites
226
within ~10 miles of Sugar Grove
Risk Level
Elevated
Highest-severity
15 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Sugar Grove
Severity Distribution
within ~10 miles of Sugar Grove
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Sugar Grove, two things run higher than the national average within ~10 miles of Sugar Grove — Mining (41 sites) and Toxics Release Inventory (15 sites). That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Sugar Grove
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 Sugar Grove average
Your land is one point inside Sugar Grove
Everything above resolves to Sugar Grove as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Sugar Grove Average
Sugar Grove Average
- ●USDA Zones 7a, averaged across Sugar Grove
- ●One soil character for all of Sugar Grove
- ●Frost dates read at Sugar Grove's scale: Apr 15 to Oct 23
YOUR Parcel
- ✓Your exact zone, not Sugar Grove's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sugar Grove
Pull a site-specific report for your exact address in Sugar Grove, Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sugar Grove averages can't show:
We read public map data around Sugar Grove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sugar Grove average
How we know this about Sugar Grove
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 Sugar Grove’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 Sugar Grove
When does frost risk typically end in Sugar Grove?
The last hard freeze (28°F) in Sugar Grove typically lands around Apr 15, 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 May 6.
When is the first frost in Sugar Grove?
The first hard freeze (28°F) in Sugar Grove typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 191 days after the spring freeze cleared.
How long is the growing season in Sugar Grove?
Measured between 28°F hard freezes, Sugar Grove sees about 191 frost-free days — roughly Apr 15 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 9, about 156 days.
Is the soil safe to grow vegetables in Sugar Grove?
The federal record around Sugar Grove is a meaningful one — 226 documented sites, mostly Underground Storage Tanks entries (128), the nearest Underground Storage Tanks record about 0.5 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 Sugar Grove?
From about Sep 23 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 Oct 23 (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 Oct 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sugar Grove's scale — its 7a band and its 191-day season. Your yard writes its own version of Sugar Grove'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 Sugar Grove’s own scale
7 of the readings below were taken at Sugar Grove's own scale — its own ~191-day season between 28°F freezes, the 1,866 acres it covers and 226 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sugar Grove's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Sugar Grove's own 28°F hard-freeze dates, about Apr 15 and Oct 23 and the ~191-day span between themNOAA 1991–2020 Climate Normals
- 226 documented contamination sites on the federal record near Sugar Grove, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Sugar Grove's boundary and the 1,866 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~191-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sugar Grove's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Sugar Grovelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sugar Grove's 1,866 acres read through its county's SSURGO summaryfrom Smyth County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Smyth 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 Smyth County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sugar Grove's 1,866 acreswhy one lot differs from the next →
- Which side of Sugar Grove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,866 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Sugar Grove-wide figureread your own land →
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