Water
Water regularly to keep the soil consistently moist, especially during dry periods. Avoid waterlogged conditions, as this can lead to root rot. Reduce watering in winter when the plant is dormant.
St. John's Wort (Hypericum lanceolatum) is a woody perennial shrub with bright yellow flowers, often used in landscaping and historically for medicinal purposes.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least 6 hours of direct sunlight daily, but can tolerate light afternoon shade, especially in hotter climates.
Moderate
50% intensity
Keep soil consistently moist, but not waterlogged. Reduce watering during winter dormancy.
Well-drained, sandy, loamy
50% intensity
Moderate
50% intensity
Prefers temperatures between 18-24°C during the day. Can tolerate cooler temperatures at night.
Low
25% intensity
Feed lightly in spring with a balanced fertilizer. Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly to keep the soil consistently moist, especially during dry periods. Avoid waterlogged conditions, as this can lead to root rot. Reduce watering in winter when the plant is dormant.
Prune in early spring before new growth begins to shape the plant and remove any dead or damaged stems. Deadheading spent flowers throughout the summer can encourage further blooming and prevent unwanted seed production.
Easily propagated from softwood cuttings taken in late spring or early summer. Seeds can also be sown in autumn or early spring. Divisions of established clumps are also a reliable method.
Young plants may need repotting annually in spring. Mature plants can be left in their pots for 2-3 years. Choose a pot slightly larger than the current one with fresh, well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of St. John's Wort (Hypericum lanceolatum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Hypericaceae |
| Genus | Hypericum |
| Species | Hypericum lanceolatum |
Similar in genus Hypericum
Answers based on plant encyclopedia data
