Generally — Most Areas
Oregon white oak (zones 5-8) partially overlaps with Tennessee (6a-7b). It can grow in zones 6-7 within the state.
Your yard isn't the whole zone.
Tennessee spans zones 6a-7b, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score oregon white oak against your parcel's actual hardiness, soil, and sun.
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Zone Comparison
Oregon White Oak Needs
- USDA Zones: 5-8
- Soil pH: 5 - 7
- Sun: Part Sun
- Drainage: well (dry spells)
- Frost-Free Days: 0+
Tennessee Has
- USDA Zones: 6a-7b
- Last Frost: Mar 20 - Apr 20
- First Frost: Oct 10 - Nov 5
- Annual Rainfall: 45-55 inches
- Common Soils: Silt loam, Clay loam, Limestone-derived
Plant Zone Range (zones 5-8)
Preferred Soil pH
Plant data: USDA PLANTS Database / plant_species_v5.csv. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Oregon White Oak in Tennessee
The frost window
Across Tennessee, the last spring frost clears between Mar 20 and Apr 20, and the first fall frost lands between Oct 10 and Nov 5 (NOAA Climate Normals 1991-2020). Counting from the latest last frost to the earliest first frost, that's a 173-day window you can count on — up to 230 days on a mild site in a kind year.
Frost tenderness
Oregon White Oak is frost-tender — its listed minimum temperature is 41°F (USDA PLANTS Database) — so set plants out after the last frost has cleared your local site, not the state's earliest date.
Establishment timing
As a long-lived plant, oregon white oak isn't racing the calendar to a harvest date. Plant it in spring once the last-frost window passes so roots settle in through the full season, or in early fall while the soil still holds summer warmth.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
Zone compatibility says you can survive winter here. Whether the growing season is long enough — and warm enough — is a different question.
Frost-free days
Oregon White Oak wants 0+ frost-free days; a typical Tennessee site sees ~220 (NOAA Climate Normals). That leaves comfortable headroom for succession planting.
Chill hours
Oregon White Oak requires ~800 chill hours (32-45°F dormancy window). Tennessee typically banks ~900 chill hours per winter (MSU Extension method), which keeps this plant on track.
Climate aggregates derive from USDA NRCS county-level hardiness data + Cornell CALS Extension GDD-by-region tables + MSU Extension chill-hours-by-zone (1991-2020 NOAA Climate Normals baseline).
Soil + Drainage Fit
Oregon White Oak likes near-neutral soil (pH 5-7). That's the common-ground band across Tennessee's silt loam and clay loam — a soil test confirms it for your site. Drainage matters: this plant wants well (dry spells). If your Tennessee site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Plant pH and drainage requirements from USDA PLANTS Database. Tennessee soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Oregon White Oak in Tennessee — Quick Answer
- Verdict: Generally — Most Areas
- Plant Zones: 5-8 (USDA PLANTS Database)
- State Zones: 6a-7b (USDA ARS PHZM 2023)
- Growing Season: Mar 20 - Apr 20 to Oct 10 - Nov 5 (NOAA Climate Normals)
What Else to Consider
Zone compatibility tells you about winter cold survival — but Tennessee growers also need to think about:
Heavy clay soils in the Nashville Basin
Basin clay is fertile once it drains — a raised bed handles that immediately, and yearly compost makes it permanent.
High humidity promotes disease in summer
Morning base-watering, breathing room between plants, and resistant varieties — the humid-summer basics from your extension.
Variable spring weather with late frost risk
Let your local frost normals set the schedule — Tennessee springs reward the growers who wait out the last cold snap.
Tennessee Cooperative Extension
For Tennessee-specific cultivar recommendations, planting calendars, and pest pressure for oregon white oak, the canonical source is UT Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Oregon White Oak native to Tennessee?
Oregon White Oak is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Tennessee. It can still earn a place in a Tennessee garden — the zone comparison above tells you whether it will thrive.
Looking for plants that belong here? The Tennessee growing guide lists USDA-documented natives for the state.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Oregon White Oak in Tennessee
When can I plant Oregon White Oak in Tennessee?
Tennessee's last spring frost clears between Mar 20 and Apr 20, and the first fall frost lands between Oct 10 and Nov 5 (NOAA Climate Normals 1991-2020). Oregon White Oak is a long-lived planting, so target spring just after your local last frost — or early fall while the soil holds warmth — and let it establish through the season.
What hardiness zone is Oregon White Oak grown in across Tennessee?
Tennessee spans USDA hardiness zones 6a-7b (USDA ARS PHZM 2023). Oregon White Oak carries a range of zones 5-8, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Tennessee site have?
A typical Tennessee site sees ~220 frost-free days per year (derived from NOAA Climate Normals 1991-2020). Oregon White Oak needs 0+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
Is Oregon White Oak native to Tennessee?
Oregon White Oak is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Tennessee. It can still earn a place in a Tennessee garden — the zone comparison above tells you whether it will thrive.
How should I amend the soil for Oregon White Oak in Tennessee?
Oregon White Oak prefers pH 5-7 and well (dry spells) drainage (USDA PLANTS Database). That sits in the common-ground band across Tennessee soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Oregon White Oak actually grow on my specific land in Tennessee?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores oregon white oak against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Tennessee
State-level data is a sketch. Your Growable Ground report scores oregon white oak against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
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.
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