Contents
Description
Silybum is a genus of flowering plants in the daisy family, Asteraceae. The genus consists of two species: Silybum marianum and Silybum eburneum. Silybum marianum, also known as milk thistle, is the more commonly known species and has been used for medicinal purposes for centuries. It is native to the Mediterranean region, but can now be found worldwide.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Silybum |
Appearance
Silybum marianum can grow up to 10 feet tall and has large, spiny leaves that are green with white veins. The flowers are purple and can grow up to 4 inches wide. The plant produces a fruit called an achene, which is brown with white hairs.
Care Guide
Silybum is a hardy plant that can thrive in a variety of conditions. It prefers well-draining soil and full sun, but can tolerate some shade. Water deeply once a week, and fertilize with a balanced fertilizer in the spring and summer. Silybum can grow in USDA hardiness zones 7-11.
Common Pests & Diseases
Silybum is relatively pest and disease-free, but can be susceptible to spider mites and aphids. These can be controlled with insecticidal soap or neem oil. The plant can also suffer from root rot if overwatered, so be sure to allow the soil to dry out between waterings.
Habitat
Silybum is native to the Mediterranean region, but can now be found worldwide. It grows in a variety of habitats, including roadsides, fields, and disturbed areas.
Question and Answer
Q: What are the medicinal properties of Silybum marianum?
A: Silybum marianum has been used to treat liver and gallbladder disorders, and has been shown to have antioxidant and anti-inflammatory properties.
Q: Can Silybum be grown indoors?
A: While Silybum can be grown indoors, it prefers full sun and may not thrive in low-light conditions.
Q: Is Silybum toxic to pets?
A: Silybum is not toxic to pets, but the spines on the leaves can cause injury.
Q: How often should Silybum be fertilized?
A: Silybum should be fertilized with a balanced fertilizer in the spring and summer.
Related Plants
- Centaurea cyanus
- Cirsium vulgare
- Echinops ritro
References
- https://www.fs.fed.us/wildflowers/plant-of-the-week/silybum_marianum.shtml
- https://www.gardeningknowhow.com/ornamental/flowers/milk-thistle/milk-thistle-care.htm
- https://www.healthline.com/nutrition/milk-thistle-benefits
