treeN. America Native

Black Oak

Quercus velutina

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Essentials

At a Glance

Plant Type

Tree

Height

720 inches

Width

720 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8, 9

Water

Low to medium

Humidity

Adaptable

Lifespan

Very long-lived (150-200 years)

Native To

Eastern and Central North America

Toxicity

Acorns are toxic to horses and cattle

The Story

Plant Bio

Quercus velutina, or Black Oak, is a large, sturdy deciduous tree native to eastern North America, belonging to the red oak group. It is characterized by its dark, deeply ridged bark and large, bristle-tipped leaves. This oak is highly valued for its ecological contributions, supporting hundreds of species of lepidoptera. Its inner bark is a rich yellow-orange, historically used for dye, and its glossy leaves turn a handsome russet-red or dull orange in fall.

Bloom Period:

EarlyLate

Uses & Benefits:

As a large, majestic tree, the Black Oak provides substantial shade and a strong, commanding presence in the landscape. Its deeply furrowed, dark bark offers rugged texture, and its glossy leaves provide good fall color, turning from yellow to russet-red.

Its wood is hard and strong, used for furniture, flooring, and railroad ties. The tree's high tannin content made its bark historically important for tanning leather. It is a tough, adaptable tree suitable for difficult, dry sites.

Black Oak is an ecological powerhouse. Its acorns are a critical food source for a wide variety of wildlife, including deer, squirrels, turkeys, and blue jays. The foliage serves as a host plant for the caterpillars of hundreds of butterfly and moth species, making it a keystone species in its native habitat.

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Planting

How to Grow

Select a site in full sun with plenty of room to grow.
Ensure the soil is well-drained; it tolerates poor, dry soils.
Dig a hole three times the width of the root ball but no deeper.
Place the tree in the hole, ensuring the root flare is visible.
Backfill with native soil, breaking up any large clumps.
Water thoroughly after planting and mulch to the dripline.

Pro Tip

Avoid pruning during the growing season (April-October) to prevent infection by oak wilt disease.

Keep It Thriving

Care Guide

Do

Water deeply but infrequently during the first few years to encourage deep roots.
Allow fallen leaves to remain as natural mulch and habitat.
Prune only in winter to remove dead or crossing branches.
Protect the area around the tree from soil compaction.

Don't

Do not prune oaks from spring through fall.
Avoid overwatering, as this tree is drought tolerant once established.
Do not fertilize mature oaks unless a soil test indicates a deficiency.
Never pile mulch against the trunk.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pest Check
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Majestic shade tree for large propertiesKey species for naturalistic plantings and restorationsDurable tree for parks and open spaces

Companion Plants

Carya ovata Acer saccharum Sassafras albidum Amelanchier arborea Carex pensylvanica

Multiply

Propagation Methods

Good to Know

Common Questions

Black Oak questions

What zones can Black Oak grow in?

Black Oak is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Black Oak deer resistant?

Yes — Black Oak is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Black Oak bloom?

Black Oak typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Black Oak need full sun?

Black Oak does best in full sun (6+ hours).

Is Black Oak drought tolerant?

Yes — once established (usually after the first full season), Black Oak handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.