The Tree That Quietly Built Civilization

In this new episode, I sit down with Dr. Andrew Hipp, director of the herbarium and lead scientist in plant systematics at The Morton Arboretum, to talk about one of the most important trees in human and natural history: the oak.

Oaks are more than trees.

They are foundations of forests, food sources for wildlife, records of evolutionary history, and quiet forces that have shaped human civilization for thousands of years.

Andrew takes us inside the life of an oak, from pollen grains and acorns to squirrels, blue jays, mast years, hybridization, and the deep genetic diversity that helps these trees survive.

We also talk about why oaks matter to ecosystems, why white oak is so important for barrels and water-resistant wood, how trees may communicate, and what climate change could mean for the future of oak forests.

Then the conversation opens into something even bigger: sedges, overlooked species, biodiversity, writing, science, and why paying attention to the natural world can change how we understand our own humanity.

This is a conversation about trees, but it is also about seeing clearly.

Because the more we understand the living world around us, the harder it becomes to treat it like background scenery.