What Grows in Onancock, Virginia

USDA Zones 7a-8b · 669 acres

Onancock, Virginia, sits in USDA hardiness zones 7a-8b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.

Crops well matched to these conditions include tomato, grape, peanut, and dogwood — though what thrives on any one site still turns on its specific soil, sun, and drainage.

Score your parcel · free

Even in Onancock, 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 Onancock 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

7a-8b

Last Hard Freeze (28°F)

Feb 25

Town normal — light frosts run a few weeks later

First Hard Freeze (28°F)

Dec 23

Town normal — light frosts arrive a few weeks earlier

Town Area

669 acres

Hardiness Zone Range

7a
8b
3a (Cold)13b (Hot)

Zone maps are averages across Onancock. 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.

Is it too late to plant in Onancock?

Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Jan 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 23 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.

Growing Challenges in Virginia

What an experienced grower plans around here — each one has a move.

Heavy Piedmont red clay requires amendment

Red clay turns from obstacle to asset with compost and time — and a raised bed lets you harvest while it happens.

Humidity and heat in summer promote disease

Space for airflow, water mornings at the base, and plant resistant varieties — your extension's humid-summer playbook.

Deer pressure is heavy in suburban and rural areas

A proper fence settles it; outside the fence, genuinely deer-resistant plants are the next best defense.

For cultivar selection, pest pressure, and planting-time guidance specific to Virginia, the Virginia Cooperative Extension is the authoritative local source.

Environmental Intelligence

Understanding what's nearby helps you make informed decisions about where and how to grow.

Total Sites

178

within ~10 miles of Onancock

Risk Level

Moderate

Highest-severity

2 Toxics Release Inventory facilities

Severity Distribution

within ~10 miles of Onancock

High0Moderate52Low126

Highest-Severity Sites

64J 1
Nitrate Monitoring · Well
64K 25
Nitrate Monitoring · Well
64K 26
Nitrate Monitoring · Well
64K 27
Nitrate Monitoring · Well
64K 28
Nitrate Monitoring · Well

A note from Gnorman

What an experienced grower watches for around here

In and around Onancock, Underground Storage Tanks runs higher than the national average — 131 sites nearby. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.

Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.

Use raised beds with imported soil — this eliminates the primary soil-contact pathway.

Free Report

Check your specific parcel in Onancock

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:

Your soil pHYour frost-free daysYour sun & shade

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

Onancock Average

  • USDA Zones 7a-8b
  • 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

Free Report

Read your specific parcel in Onancock

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

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

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 Onancock, Virginia

  • USDA Hardiness Zones: 7a-8b (USDA PHZM 2023)
  • Last Hard Freeze (28°F): Feb 25 (town normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
  • First Hard Freeze (28°F): Dec 23 (town normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
  • Days Between Hard Freezes: ~301 (town normal, NOAA 1991–2020 Climate Normals)
  • Land Area: 669 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 Onancock, Virginia?

Onancock sits in USDA hardiness zones 7a-8b, 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 Onancock?

Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Jan 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 23 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.

When does frost risk typically end in Onancock?

The last hard freeze (28°F) in Onancock typically lands around Feb 25, 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 Onancock?

The first hard freeze (28°F) in Onancock typically arrives around Dec 23, 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 Onancock?

Onancock's zones 7a-8b support a wide range — strong performers include Tomato, Grape, Peanut, Dogwood, and 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 Onancock, really?

Officially, Onancock sits in USDA zones 7a-8b (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 Onancock?

The federal record around Onancock shows 178 documented sites — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.

How do I protect my plants from frost in Onancock?

As the season closes around the first 28°F hard freeze near Dec 23 (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 Onancock 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.