Asymmetry (Bonsai Mirai) 

Cultivating Place

Emergence Magazine (select episodes)

Garden People

Green Dreamer (select episodes)

FORE: Yale Forum on Religion and Ecology (select episodes)

In Defense of Plants

Plants Are People Too

Plant Biosecurity CRC

Plants Grow Here

Roots & Seeds XXI

The Daily Gardener

The Herbal Highway

The Horticulturati

The Native Plant Podcast

The Native Seed Pod

The Overstory (select episodes)

The Plant Spirit

Tree Radicals

List of further recommendations for ecology-related podcasts

General Ecology: Plantsex (Serpentine Podcast)

General Ecology: With Plants (Serpentine Podcast)

Gras wachsen hören (100 Jahre biolinga Institut)

Radikale Netzwerke: Einblicke in Pflanzenwelten (Deutschlandfunk)

Smarty Plants (Radiolab)

The Rights of Rice and Future of Nature (99% Invisible)

The Roots of Plant Intelligence (TED Talk by Stephano Mancuso)