White Oak

Scientific Name: Quercus alba L.


Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Hamamelididae / Fagales / Fagaceae / Quercus L./ Quercus alba L.

White Oak
General Information
Usda SymbolQUAL
GroupDicot
Life CyclePerennial
Growth HabitsTree
Native LocationsQUAL

Plant Guide

Use soil moisture sensors to measure the soil moisture of White Oak.

Fact Sheet

Alternate Names

stave oak

Uses

Wildlife: Acorns are eaten by squirrels, blue jays, crows, red-headed woodpeckers, deer, turkey, quail, mice, chipmunks, ducks and raccoons. Timber: White oak’s wood is strong and durable for staves for barrels, lumber, flooring, and interior woodwork. Recreation and Beautification: White oak is an excellent ornamental tree because of its broad round crown, dense foliage, and purplish-red to violet-purple fall color.

Status

Please consult the PLANTS Web site and your State Department of Natural Resources for this plant’s current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values).

Description

Quecus alba L., white oak, grows from Maine to Minnesota southward to Florida and Texas. It is a large, stately tree that grows up to over 100 feet tall, and 38 to 50 inches in diameter, with a round to wide spreading irregular crown. White oak bark is whitish or light gray, varying from scaly to irregularly platy or ridged and furrowed. Leaves are simple and alternately arranged on the stems; they are 5-6 inches long and have a rounded tip and wedge-shaped base, with evenly notched edges; leaves are bright green above and whitish underneath. Male flowers are green and 2-4 inches long, while female flowers are reddish and they appear as single spikes with the leaves. White oak acorns are oval; about a quarter of the acorn body is covered with a cap which drops off at maturity. There are approximately 120 seeds per pound.

Adaptation and Distribution

Distribution , Use soil moisture sensors to measure the soil moisture of White Oak.

Distribution

Although found on many soil types, white oak does best on coarse, deep, moist, well-drained, with medium fertility, and slightly acid soils. It is well adapted to heavy soils and north and east-facing slopes. Natural stands are often found in areas with loam and clay soil. White oak is moderately resistant to ice breakage, sensitive to flooding, and resistant to salt spray and brief salt-water submergence. It is sensitive to fire injury, coal smoke, and fly ash deposit on soil surface. For a current distribution map, please consult the Plant Profile page for this species on the PLANTS Website.

Establishment

Fall seeding is preferable to spring seeding. White oak acorns have no dormancy and germinate immediately following seeding. Acorns are drilled in rows 8 to 10 inches apart, or broadcast and covered with ¼ inch of firmed soil. In the nursery, seedbed densities of 10 to 35 per square foot are recommended. Fall sown beds should be mulched to protect the seeds and seedlings. Partial shade is beneficial for germination. Seedlings are transplanted after the first year. Because of its deep root system, white oak is fairly tolerant of a range of soil conditions and fairly drought tolerant when well established; however, because it is taprooted, it is difficult to transplant. Production in the nursery is difficult as well and growth is slow.

Management

White oak is generally classified as intermediate in its tolerance to shade. Its tolerance decreases as a tree becomes older and larger. Thinning combined with fertilization can boost diameter growth. White oak usually becomes dominant because of its ability to persist for long periods of time in the understory, its ability to respond well after thinning, and its great longevity. Even-aged silviculture is most suitable if oaks are growing in pure or mixed hardwood stands. Reducing both overstory and understory competition is likely to accelerate the growth of seedlings.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-43
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsNo
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceNone
CaCO3 ToleranceMedium
Cold Stratification RequiredNo
Drought ToleranceMedium
Fertility RequirementLow
Fire ToleranceMedium
Frost Free Days, Minimum145
Hedge ToleranceNone
Moisture UseMedium
pH, Maximum6.8
pH, Minimum4.5
Planting Density per Acre, Maxim800
Planting Density per Acre, Minim300
Precipitation, Maximum80
Precipitation, Minimum30
Root Depth, Minimum (inches)48
Salinity ToleranceMedium
Shade ToleranceIntermediate


Morphology/Physiology

BloatNone
ToxicityNone
Resprout AbilityYes
Shape and OrientationErect
Active Growth PeriodSpring and Summer
C:N RatioHigh
Coppice PotentialYes
Fall ConspicuousYes
Fire ResistantNo
Flower ColorYellow
Flower ConspicuousNo
Foliage ColorGreen
Foliage Porosity SummerDense
Foliage Porosity WinterPorous
Foliage TextureMedium
Fruit/Seed ConspicuousYes
Nitrogen FixationNone
Low Growing GrassNo
LifespanLong
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)100.0
Height at 20 Years, Maximum (fee25
Growth RateSlow
Growth FormSingle Stem
Fruit/Seed ColorBrown


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorHigh
Seed Spread RateSlow
Fruit/Seed Period EndFall
Seed per Pound128
Propagated by TubersNo
Propagated by SprigsNo
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootYes
Fruit/Seed PersistenceNo
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceHigh
Commercial AvailabilityRoutinely Available
Bloom PeriodMid Spring
Propagated by CuttingsNo


Suitability/Use

Veneer ProductYes
Pulpwood ProductNo
Protein PotentialMedium
Post ProductNo
Palatable HumanNo
Palatable Browse AnimalMedium
Nursery Stock ProductYes
Naval Store ProductYes
Lumber ProductYes
Fuelwood ProductHigh
Fodder ProductNo
Christmas Tree ProductNo
Berry/Nut/Seed ProductNo

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