Forrest's St John's wort (Hypericum forrestii)
Care, watering, light and tips for Forrest's St John's wort on Floravia.
Quick facts
- Family: Hypericaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Forrest's St John's wort
Hypericum forrestii, also known as Forrest's St. John's Wort, is a medium-sized deciduous or semi-evergreen shrub, valued for its striking bright yellow flowers that bloom in summer. Its prominent stamens give it a fluffy and attractive appearance. It is ideal for shrub borders, rock gardens, or as a specimen plant in temperate climates.
Native range
China and Myanmar
Care tips
It prefers a location in full sun to partial shade, thriving with at least 4-6 hours of direct sun per day. Watering should be regular, keeping the substrate moist but well-drained, especially during dry periods; avoid waterlogging, which can lead to root rot. Use a fertile, well-drained substrate, slightly acidic to neutral. A common mistake is not pruning the plant after flowering to encourage denser growth and more abundant blooms the following year.
How to save a dying Forrest's St John's wort
- Warning signs
- Yellowing or browning, wilting leaves, premature flower or bud drop. Soft stems or dark spots.
- First aid
- Check drainage and substrate moisture. If potted, remove and examine roots. Prune damaged parts.
- What kills it
- Overwatering causing root rot or lack of sun. Does not tolerate prolonged drought or waterlogging.
- Can it be saved?
- Yes, if you act quickly. Prune damaged parts, improve drainage, adjust watering and light. Monitor recovery.