Petasites fragrans

The pyrenees butterbur grows best in moderate light, with sunlight filtered through leaves being its preferred condition. It can tolerate lower light levels similar to a forest floor beneath dense tree crowns. However, too much exposure can cause its health to decline.

Pyrenees butterbur is naturally adapted to temperate climates with temperatures ranging from 41 to 95 °F (5 to 35 ℃). Ideally, a moderation between these extremes across the seasons promotes optimal growth and health.

One fertilizer application in spring is typically enough for Pyrenees butterbur, although several feedings can boost growth. Apply fertilizer about every month to a month and a half. Fertilizing improves leaf appearance and performance, helping maintain even color and a healthy texture. It also encourages root development and nutrient uptake, supporting the plant's long-term health.