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Description
Hypericum Olympicum is a perennial plant belonging to the Hypericaceae family. It is native to Greece and the Balkans and is commonly known as Olympic St. John’s Wort. The plant produces bright yellow flowers with five petals and numerous stamens. The leaves of Hypericum Olympicum are lance-shaped, dark green, and grow up to 8 cm long.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Hypericaceae |
| Genus | Hypericum |
Appearance
Hypericum Olympicum can grow up to 60 cm tall and 90 cm wide. The plant has a bushy habit and produces multiple stems from the base. The bright yellow flowers of Hypericum Olympicum bloom in mid-summer and measure up to 5 cm in diameter. The plant’s leaves are dark green, glossy, and have a slightly wavy edge.
Care Guide
Hypericum Olympicum prefers well-draining soil and full sunlight. The plant requires moderate watering and should be fertilized in the spring with a balanced fertilizer. Hypericum Olympicum is hardy to USDA zones 6-9.
Common Pests & Diseases
Hypericum Olympicum is susceptible to aphids and spider mites, which can be controlled through regular application of insecticidal soap. The plant may also be affected by fungal diseases such as powdery mildew, which can be treated with a fungicide.
Habitat
Hypericum Olympicum is native to Greece and the Balkans, where it grows in rocky areas and open woodlands. The plant is also commonly grown in gardens and landscape settings for its ornamental value.
Question and Answer
Q: Can Hypericum Olympicum grow in shade?
A: No, Hypericum Olympicum requires full sunlight to grow and bloom.
Q: How often should I water my Hypericum Olympicum?
A: Hypericum Olympicum should be watered regularly, but not excessively. Allow the soil to dry out slightly between waterings.
Q: What is the best time to fertilize Hypericum Olympicum?
A: Hypericum Olympicum should be fertilized in the spring with a balanced fertilizer.
Q: How tall does Hypericum Olympicum grow?
A: Hypericum Olympicum can grow up to 60 cm tall.
Related Plants
- Hypericum perforatum
- Hypericum calycinum
- Hypericum androsaemum
- Hypericum kalmianum
References
- Missouri Botanical Garden. (n.d.). Hypericum olympicum. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=j470
- RHS. (n.d.). Hypericum olympicum. Retrieved from https://www.rhs.org.uk/Plants/13613/Hypericum-olympicum/Details
- Dave’s Garden. (n.d.). Hypericum olympicum. Retrieved from https://davesgarden.com/guides/pf/go/58002/
