Completely Arbortrary

By Completely Arbortrary

Tree advocate Casey Clapp and his tree-curious friend Alex Crowson bring you a podcast about trees and other related topics. History, culture, art, religion, science... trees affect and are affecte

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4.8

12441,244 ratings

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FAQs about Completely Arbortrary:

How many episodes does Completely Arbortrary have?

The podcast currently has 275 episodes available.

Completely Arbortrary episodes:

March 12, 2026 Anastasianism (Siberian Stone Pine)
Be one with the land (and also learn teleportation) with Anastasianism, a religion centered around the Siberian stone pine (Pinus siberica).
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.
...more
1h 14min
March 05, 2026 How Casey Learned to Stop Worrying and Love the Apple (Apple 3)
260 episodes and 5 years later, and Casey has found an apple he loves, (Malus hupehensis), which he dubs by far the most interesting apple 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
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.
...more
1h 13min
February 26, 2026 Are You There, Fog? (Coast Redwood 2)
Fog: the coast redwood's strongest ally through a process called folial uptake.
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.
...more
1h 11min
February 19, 2026 Reinventing the (Wheel Tree)
Don't go reinventing the wheel tree (Trochodendron aralioides), it certainly isn't.
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.
...more
1h 4min
February 12, 2026 Even Older Growth (Western Juniper 2)
You’ve heard of old growth forest… but how about old growth woodland? For more info, ask the western juniper (Juniperus occidentalis), a tree that is helping to redefine the meaning of old growth. Then, we play a brand new game!
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.
...more
1h 31min
February 05, 2026 Renaissance Tree (Superb Schima)
A tree that lacks nothing… except for name recognition: the superb schima (Schima superba) (yes, that is its real name.)
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.
...more
1h 9min
January 29, 2026 Cones on the Spectrum (Celerytop-Pine)
Forget everything you thought you knew about conifers, and make way for the celerytop-pine (Phyllocladus aspleniifolius) with leaves and cones like no other, and raises the question “what is a conifer”?
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.
...more
1h 20min
January 22, 2026 Evolutionary Naïveté (Blue Ash)
When the emerald ash borer came to North America, few ashes survived. But one native species, the blue ash (Fraxinus quadrangulata), survived. How did this lucky survivor beat the odds?
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.
...more
1h 1min
January 15, 2026 Bird Influence (Limber Pine)
Today we discuss our flexible friend the limber pine (Pinus flexilis) and its curious co-evolutionary relationship with, you guessed it, BIRDS.
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.
...more
1h 27min
January 08, 2026 Burning Hot Fresh Root News (Scots Pine)
Welcome to Season X of Completely Arbortrary, our final hoorah! To begin the end, we talk about senses of smell and the Scots pine (Pinus sylvestris).
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.
...more
1h 11min

FAQs about Completely Arbortrary:

How many episodes does Completely Arbortrary have?

The podcast currently has 275 episodes available.

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