State

Arbor Day Observance

State Tree

Alabama

Last full week of February:

February 4-10th

Longleaf Pine

Alaska

Third Monday in:

May 21st

Sitka Spruce

Arizona

Last Friday in April:

April 27th

Palo Verde

Arkansas

Third Monday in March:

March 19th

Pine

California

Annual Week of Observance:

March 7-14th

California Redwood

Colorado

Third Friday in April:

April 20th

Colorado Blue Spruce

Connecticut

Last Friday in April:

April 27th

Charter White Oak

Delaware

Last Friday in April:

April 27th

American Holly

Florida

Third Friday in January:

January 19th

Cabbage Palmetto

Georgia

Third Friday in February:

February 16th

Live Oak

Hawaii

First Friday in November:

November 2nd

Kukui Nut Tree

Idaho

Last Friday in April:

April 27th

Western White Pine

Illinois

Last Friday in April:

April 27th

White Oak

Indiana

Last Friday in April:

April 27th

Tulip Tree

Iowa

Last Friday in April:

April 27th

Oak

Kansas

Last Friday in April:

April 27th

Cottonwood

Kentucky

First Friday in April:

April 6th

Tulip Poplar

Louisiana

Third Friday in January:

January 16th

Bald Cypress

Maine

Third Full week in May:

May 20-26th

Eastern White Pine

Maryland

First Wednesday in April:

April 4th

White Oak

Massachusetts

Last Friday in April:

April 27th

American Elm

Michigan

Last Friday in April:

April 27th

Eastern White Pine

Minnesota

Last Friday in April:

April 27th

Red Pine

Mississippi

Second Friday in February:

February 9th

Southern Magnolia

Missouri

First Friday in April:

April 6th

Flowering Dogwood

Montana

Last Friday in April:

April 27th

Ponderosa Pine

Nebraska

Last Friday in April:

April 27th

Cottonwood

Nevada

Last Friday in April:

April 27th

Single-leaf Pinon And Bristlecone Pine

New Hampshire

Last Friday in April:

April 27th

American White/ Paper Birch

New Jersey

Last Friday in April:

April 27th

Northern Red Oak

New Mexico

Second Friday in March:

March 9th

Pinon

New York

Last Friday in April:

April 27th

Sugar Maple

North Carolina

First Friday following March 15th:

March 16th

Pine

North Dakota

First Friday in May:

May 4th

American Elm

Ohio

Last Friday in April:

April 27th

Ohio Buckeye

Oklahoma

Last Full Week of March:

March 25-31st

Eastern Red Bud

Oregon

First Full Week of April: April 1-7th

Douglas Fir

Pennsylvania

Last Friday in April:

April 27th

Eastern Hemlock

Rhode Island

Last Friday in April:

April 27th

Red Maple

South Carolina

First Friday in December:

December 7th

Cabbage Palmetto

South Dakota

Last Friday in April:

April 27th

Black Hills Spruce

Tennessee

First Friday in March:

March 2nd

Tulip Poplar

Texas

Last Friday in April:

April 27th

Pecan

Utah

Last Friday in April: April 27th

Blue Spruce

Vermont

First Friday in May:

May 4th

Sugar Maple

Virginia

Last Friday in April:

April 27th

Flowering Dogwood

Washington

Second Wednesday in April:

April 11th

Western Hemlock

West Virginia

Second Friday in April:

April 13th

Sugar Maple

Wisconsin

Last Friday in April:

April 27th

Sugar Maple

Wyoming

Last Monday in April:

April 30th

Cottonwood