What does the purpleleaf plum (Prunus cerasifera 'Thundercloud') represent for you? For Casey and Alex, it's the suburbs, and boy do they despise it. This week, we get a little snippet of American History and hear about how the suburbs came to be, and how this tree has come to represent them in the worst way.

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

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Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

There are more than 20 species of Polylepis shrubs and trees. At the highest altitudes (upwards of 16,000 feet, they grow as small shrubs. Lower, they can grow up 120 feet. So this forest is a bit unique, and we need to get to the bottom of it: IS it a forest? Or is it a shrubland? When does it become such?

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

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Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Should Man hold dominion over nature? And where did this idea come from? What got us in our current environmental mess in the first place. Today we talk the Judas Tree (Cercis siliquastrum) and tackle some BIG picture stuff too.

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A tree that truly grows its own way, the Pacific madrone (Arbutus menziesii) is a prolific grower and a gorgeous shower. Listen along as we discuss this curious beauty and the special place it’s found in the world.

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

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Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Can a tree help you be smarter? This week we dive into that question and discuss how air pollution effects our brains, and how trees can help keep us operating at our top level. After our rating, we head LIVE to the Grand Finale of the Tournament of Champion Trees with Tobin Mitnick (@jewslovetrees).

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

This week we have our work cut out for us. The black cottonwood (Populus trichocarpa) is our tree of topic, and there's no getting around it: it's an emotional roller coaster that pulls us in every direction at once. Listen in and make your own opinions on this complicated tree, and stick around for the second round of the Tournament of Champion Trees, with Tobin Mitnik as our guest.

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Join us this week where the trees have no name. But this one does! It’s Joshua! Learn all about yuccas on our last of three monocotic adventures.

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Our quest to further define "tree" continues with the STUNNING Socotra Dragon Blood Tree (Dracaena cinnabari). We talk all about this unique, altruistic "tree" and all the curious strategies it takes to get where it's going. Then we answer a question about tree albinoism!

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

What exactly isn't a tree? This week we cover the other side of the controversy coin with a discussion on the Chinese windmill palm (Trachycarpus fortunei). We get into the thick of it and find out just what a palm is if it's not a "tree".

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

One of the biggest trees around, the tuliptree is an ancient species and a champion of the people. Learn all about the arbitrary intricacies of measuring Champion Trees and select who you think will make it to the end!

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.