Mescaline Grove: A Prehistoric Fern Forest in San Francisco

Why It Stands Out

The grove's history dates back to the late 19th century, sparked by the ambitious planting projects of park superintendent John McLaren. Around 1890, McLaren received a collection of exotic specimens from a visitor, marking the beginning of this botanical experiment.

These towering plants, native to the distant forests of Australia and New Zealand, found the foggy, temperate climate of San Francisco surprisingly hospitable. While four distinct varieties were originally introduced to the dell, two hardy species—the Dicksonia antarctica and the Sphaeropteris cooperi—eventually came to dominate the space.

The result is a dense, primeval canopy that feels more like a dinosaur habitat than a public park. During the counterculture movement of the 1960s, the dell’s surreal, immersive environment earned it the psychedelic moniker "Mescaline Grove," a name that still sticks with locals today.

Whether you are looking for a quiet moment of reflection or a place where children can imagine prehistoric monsters lurking behind the trunks, the grove offers a unique sensory experience defined by damp earth and emerald light.

Before You Go

Finding this hidden gem is relatively straightforward, as it sits directly across from one of the park's most iconic landmarks. The paths here can be perennially moist due to the shade and the nature of the plants, so watch your footing on the winding trails.

It is a perfect, quick detour for those already visiting the nearby botanical gardens or the Conservatory of Flowers.