- Foundation". www.
arborday.org.
Archived from the
original on 2021-06-23.
Retrieved 2021-06-25. "Annual
Report for The
Arbor Day Foundation". www.
arborday.org. Archived...
-
original on 2021-12-22.
Retrieved 2021-12-22. "Hardiness Zone Map at
arborday.org".
arborday.org.
Archived from the
original on 2016-06-23.
Retrieved 2021-11-03...
- of the
Thomas &
Friends television series. In 2024, he
voiced Chester Arborday in the
season 35
episode of The Simpsons, "Lisa Gets an F1". In 2025, Berry...
- Horticulture,
Virginia Tech "How to
Plant Trees to
Conserve Energy for
Summer Shade -
Climate Change at
arborday.org". www.
arborday.org.
Retrieved 2017-05-03....
- plants". mortonarb.org. The
Morton Arboretum.
Retrieved 2020-06-03. "Trees".
arborday.org. The
Arbor Day Foundation.
Retrieved 2020-06-03. "The
PLANTS Database"...
-
Hardiness Zone
Lookup at
Archived March 24, 2013, at the
Wayback Machine.
Arborday.org.
Retrieved July 12, 2013.
National Climatic Data Center. "State Climate...
- 2021.
Retrieved March 19, 2021. "Tree
Campus Higher Education at
arborday.org".
arborday.org.
Archived from the
original on
December 2, 2023. Retrieved...
- May 2013.
Retrieved 26
September 2012. "Trees –
Arbor Day Foundation".
Arborday.org.
Archived from the
original on 28
April 2010.
Retrieved 27
April 2010...
-
Archived from the
original on
October 16, 2011.
Retrieved May 25, 2007. "2006
arborday.org
Hardiness Zone Map".
National Arbor Day Foundation.
Archived from the...
-
Retrieved 14
January 2019. "Baldcypress Tree on the Tree
Guide at
arborday.org". www.
arborday.org.
Retrieved 15
January 2019. Calhoun, Milburn; Frois, Jeanne...
