Water
Water regularly during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering in winter to prevent waterlogging. Ensure good drainage to avoid root rot, especially in containers.
Tonic Teacost (Isodon japonicus) is an herbaceous perennial native to East Asia, known for its medicinal properties and ornamental appeal in gardens.
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 tolerates some shade.
Moderate
50% intensity
Keep soil consistently moist but not waterlogged.
Well-drained
50% intensity
Moderate
50% intensity
Thrives in temperatures between 15-25°C. Protect from frost.
Outdoor
50% intensity
Moderate
50% intensity
Feed monthly during the growing season with a balanced liquid fertilizer.
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 during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering in winter to prevent waterlogging. Ensure good drainage to avoid root rot, especially in containers.
Prune in late winter or early spring before new growth begins. Remove dead, damaged, or crossing branches. Pinch back young stems to encourage bushier growth. Pruning helps maintain shape and promotes flowering.
Propagate from semi-hardwood cuttings taken in summer. Insert cuttings into well-draining potting mix and keep them moist. Rooting typically occurs within a few weeks. Alternatively, sow seeds in spring.
Repot every 2-3 years in spring, or when the plant becomes root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one to avoid overwatering issues.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Tonic Teacost (Isodon japonicus)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Isodon |
| Species | Isodon japonicus |
Similar in genus Isodon
Answers based on plant encyclopedia data
