Hypericum
Contents
Description
Hypericum is a genus of flowering plants that belongs to the family Hypericaceae. The genus consists of over 400 species of annuals, perennials, shrubs, and small trees. Hypericum is commonly known as St. John’s wort, and it is native to many regions around the world, including Europe, Asia, and North and South America. The plant has been used for medicinal purposes for centuries, and it is also a popular ornamental plant in gardens and landscapes.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Hypericaceae |
| Genus | Hypericum |
Appearance
Hypericum plants typically have bright yellow flowers that bloom in the summer. The flowers are usually five-petaled and have numerous stamens. The leaves are opposite and can be either deciduous or evergreen, depending on the species. The fruit of the plant is a capsule that contains numerous small seeds. Hypericum plants vary in size, from small annuals to large shrubs and small trees.
Care Guide
Water
Hypericum plants prefer well-drained soil that is evenly moist. They do not like to be overwatered or underwatered, so be sure to water them regularly, but not too much.
Fertilization
Hypericum plants do not require a lot of fertilizer, but a balanced fertilizer can be applied in the spring to encourage growth and flowering.
Soil
Hypericum plants prefer well-drained, slightly acidic soil that is rich in organic matter. They do not tolerate heavy clay soil or soil that is too alkaline.
Sunlight
Hypericum plants prefer full sun to partial shade. They can tolerate some shade, but too much shade can reduce flowering.
Hardiness Zones
Hypericum plants are hardy in USDA zones 5-9, depending on the species.
Common Pests & Diseases
Hypericum plants are relatively pest and disease resistant, but they can be susceptible to some common problems. These include:- Aphids: These small insects can be controlled with insecticidal soap or neem oil.- Leaf spot: This fungal disease can be prevented by ensuring good air circulation and avoiding overhead watering.- Rust: This fungal disease can be controlled with fungicides, but prevention is the best approach.
Habitat
Hypericum plants can be found in a wide variety of habitats, including meadows, woodlands, and wetlands. They are adaptable plants that can grow in a range of soil types and moisture levels. Many species are native to Europe, Asia, and North and South America.
Question and Answer
Q: Is Hypericum poisonous?
A: Some species of Hypericum can be toxic to livestock if ingested in large quantities. However, the plant is generally safe for humans.
Q: Can Hypericum be used for medicinal purposes?
A: Yes, Hypericum has been used for centuries for its medicinal properties. It is commonly used to treat depression and anxiety.
Q: How often should I fertilize my Hypericum plant?
A: Hypericum plants do not require a lot of fertilizer, but a balanced fertilizer can be applied once in the spring to encourage growth and flowering.
Q: Where is Hypericum native to?
A: Hypericum is native to many regions around the world, including Europe, Asia, and North and South America.
Related Plants
– Hypericum perforatum (St. John’s wort)- Hypericum calycinum (Rose of Sharon)- Hypericum androsaemum (Tutsan)- Hypericum patulum (Spreading St. John’s wort)
References
– “Hypericum.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b599.- “Hypericum.” Wikipedia, Wikimedia Foundation, 27 May 2021, en.wikipedia.org/wiki/Hypericum.
