Contents
Description
Petasites, also known as butterbur, is a genus of perennial plants that belongs to the Asteraceae family. These plants are native to the northern hemisphere and are known for their large leaves and medicinal properties. There are around 15 species of Petasites, with some growing up to 6 feet tall.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Petasites |
Appearance
Petasites have large leaves that can grow up to 3 feet wide. The leaves are heart-shaped and have a rough texture. The flowers of Petasites are small and grow in clusters at the end of a long stem. They are usually white or pink in color and bloom in late winter or early spring.
Care Guide
Petasites require moist soil and partial shade to grow well. They can tolerate full sun but may require additional watering. Fertilize Petasites with a balanced fertilizer in the spring and fall. They can grow in most soil types but prefer a rich, organic soil. Petasites are hardy in zones 4-9.
Common Pests & Diseases
Petasites are susceptible to powdery mildew and rust. These diseases can be prevented by ensuring good air circulation around the plant and avoiding overhead watering. Aphids and spider mites can also be a problem for Petasites. These pests can be controlled with insecticidal soap or neem oil.
Habitat
Petasites are found in wetlands, marshes, and other areas with moist soil. They are often found near streams and rivers and can tolerate flooding. Petasites are also commonly found in wooded areas and along forest edges.
Question and Answer
Q: Can Petasites be grown in containers?
A: Yes, Petasites can be grown in containers as long as they are kept moist and receive partial shade.
Q: Are Petasites toxic to pets?
A: Yes, Petasites can be toxic to pets if ingested.
Q: Can Petasites be used for medicinal purposes?
A: Yes, Petasites have been used for centuries to treat headaches, allergies, and respiratory problems.
Q: How often should Petasites be watered?
A: Petasites should be watered regularly to keep the soil moist, especially during hot, dry weather.
Related Plants
- Tussilago
- Sanguisorba
- Arctium
References
- “Petasites.” Missouri Botanical Garden. Accessed May 3, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=d270.
- “Butterbur (Petasites).” The Old Farmer’s Almanac. Accessed May 3, 2021. https://www.almanac.com/plant/butterbur.
