When does Northern Red Oak bloom?

Northern Red Oak produces small greenish yellow catkins in May and June, usually appearing as the leaves begin to unfold.

What pollinates Quercus rubra?

The catkins of Northern Red Oak are mainly wind pollinated, but bees and beetles will visit the flowers to collect pollen.

How much light does Northern Red Oak need?

This tree grows best in full sun once established but young trees can tolerate part sun to part shade beneath a forest canopy.

What soil moisture does Northern Red Oak prefer?

It does well in medium moisture, well drained soils and adapts to a variety of upland forest and woodland sites.

Does Northern Red Oak keep its leaves in winter?

It is deciduous, though some dried leaves may cling to the branches into winter before finally dropping.

Is Northern Red Oak toxic to livestock?

The USDA PLANTS Database does not flag Northern Red Oak as toxic to livestock.

Is Northern Red Oak HOA-friendly?

Northern Red Oak is generally an HOA-friendly choice in the right placement, with moderate maintenance.

Northern Red Oak

Name: Pollinator Patch
Author: Pollinator Patch

Quercus rubra

Last reviewed: October 2026

Quercus rubra is a large deciduous shade tree suited to full sun or part shade with medium water needs. It flowers with small catkins in May and June and is common in forests and woodlands across the eastern and midwestern United States.

Northern Red Oak (Quercus rubra) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Northern Red Oak as toxic to livestock.

Light

full sun

Water

medium

Size

600"–900" H × 480"–720" W

Bloom

May, Jun

Native to

AL, AR, CT, DE and 29 more states

Pollinators

bees, beetles

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Try it with your yard

Northern red oak is a large, stately shade tree with distinctive lobed leaves that turn brilliant red to orange in fall. This long-lived native can reach 50-75 feet tall and wide, making it an excellent choice for spacious properties where it has room to develop its classic rounded crown.

Growing Northern Red Oak

Grow Northern Red Oak in full sun and medium water. Mature plants reach 600 to 900 inches tall and spread 480 to 720 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

How to care for Northern Red Oak, by region

How to care for Northern Red Oak where it is actually grown: year-round basics plus what to do each season, region by region, with the sources for each.

Care guidance last updated: October 2026

Atlantic Coastal Pine Barrens (includes Riverhead, NY)

Year-round

A fast-growing shade tree that is drought tolerant once established.

It prefers full sun and moist to dry, well-drained, acidic, fertile, sandy to loamy soils.
Once established, it is drought tolerant.
It is easily transplanted and hardy in USDA zones 4a to 8b.
It reaches 50 to 75 feet tall and about as wide.

Fall

Fall is for a last watering and acorns.

Mid August through September is the most important time to prepare plants for winter.
Water a first-year tree about once every four weeks in autumn.
Acorns feed woodpeckers, blue jays, small mammals, wild turkeys, deer and black bears.
Nut weevils, filbert worms and acorn moths can damage the acorns.

Winter

Winter is the time to prune.

Prune oaks in winter, not in the growing season.
Plants should enter winter with ample moisture.
Do not move firewood from an infected tree.
Oak wilt spreads when firewood from an infected tree is moved, and beetles can then carry the fungus to healthy trees.

Spring

Spring is for watering a young tree and skipping pruning.

It is susceptible to oak wilt.
Oak wilt is contagious during warm months from April to November, so avoid fresh cuts then.
The state asks homeowners to prune oaks in winter.
Chlorosis can occur when soil is not acidic enough.

Summer

Summer water matters most for young trees.

Water a first-year tree deeply at least once a week in dry spells.
In the second year, water about once every three weeks in summer.
Established trees are drought tolerant.
Gypsy moth is described as the most destructive pest because it defoliates the trees.

Sources: NC State Extension Plant Toolbox, Quercus rubra, Cornell Chronicle, Oak wilt found in six new New York locations, Cornell Cooperative Extension Suffolk, Prune Your Oak Trees in Winter, Cornell Cooperative Extension Suffolk, Watering Trees and Shrubs on Long Island

In an HOA neighborhood

Northern Red Oak is an HOA-friendly choice. Maintenance level: moderate. Tidiness: 4 out of 5.

Works well in: front yard, street edge, mid zone.

Requires large space to mature properly
Acorn drop in fall may need cleanup

Wildlife value

Host plant for banded hairstreak, rosy maple moth, gypsy moth.

Supports over 500 species of butterflies and moths as a host plant, plus provides acorns for squirrels, deer, and birds. Flowers attract bees and beetles in late spring.

Common questions

When does Northern Red Oak bloom?: Northern Red Oak produces small greenish yellow catkins in May and June, usually appearing as the leaves begin to unfold.
What pollinates Quercus rubra?: The catkins of Northern Red Oak are mainly wind pollinated, but bees and beetles will visit the flowers to collect pollen.
How much light does Northern Red Oak need?: This tree grows best in full sun once established but young trees can tolerate part sun to part shade beneath a forest canopy.
What soil moisture does Northern Red Oak prefer?: It does well in medium moisture, well drained soils and adapts to a variety of upland forest and woodland sites.
Does Northern Red Oak keep its leaves in winter?: It is deciduous, though some dried leaves may cling to the branches into winter before finally dropping.
Is Northern Red Oak toxic to dogs?: Northern Red Oak is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Northern Red Oak toxic to cats?: Northern Red Oak is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
Is Northern Red Oak toxic to livestock?: The USDA PLANTS Database does not flag Northern Red Oak as toxic to livestock.
Is Northern Red Oak HOA-friendly?: Northern Red Oak is generally an HOA-friendly choice in the right placement, with moderate maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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