Rang Jued (Thunbergia laurifolia)
Vining Tropical Beauty and Powerful Herbal Detox Plant
Rang Jued (Thunbergia laurifolia), also known as Blue Trumpet Vine or Laurel Clock Vine, is a fast-growing, evergreen tropical vine prized for its gorgeous lavender-blue trumpet flowers and its use as a powerful detox herb in traditional Thai medicine. Revered for its ability to help cleanse the body of toxins, Rang Jued is often brewed into cooling, refreshing teas that support liver health and overall wellness.
This vigorous vine thrives in warm, humid gardens, quickly covering arbors, fences, and trellises with lush green leaves and cascading blooms. A stunning addition to tropical gardens, food forests, herbal medicine plots, or even large containers, Rang Jued offers both ornamental beauty and traditional healing power. Harvest in the morning for highest potency.
Why You'll Love It:
- Traditional detox herb used in Thai wellness practices
- Produces show-stopping lavender-blue trumpet flowers
- Fast-growing, lush, and perfect for arbors and fences
- Can be brewed into teas to support cleansing and cooling
- Beautiful tropical accent for food forests and edible gardens
Growing Tips:
- Plant in full sun to part shade with rich, well-draining soil
- Provide sturdy support—this is a vigorous climber!
- Water regularly; appreciates consistent moisture during the growing season
- Prune as needed to manage growth and encourage more blooms
- In cooler zones, grow as a container plant and protect from frost
| Scientific Name | Thunbergia laurifolia |
|---|---|
| Common Names | Rang Jued, Blue Trumpet Vine, Laurel Clock Vine |
| Family | Acanthaceae (Acanthus Family) |
| Origin | Southeast Asia (Thailand, Laos, Cambodia) |
| Plant Type | Medicinal Vine / Flowering Perennial |
| Life Cycle | Perennial in tropics; tender perennial elsewhere |
| Food Forest Layer | Vine Layer / Vertical Layer |
| Mature Size | 15–30 ft with support |
| Light | Full Sun to Part Shade |
| Water Needs | Moderate to High |
| Harvest Season | Year-round foliage and flowers in tropical zones |
| Time to Harvest | 6–12 months for leaf harvest. Harvest leaves in the morning for highest potency. |
| Self-Fertile | Yes |
| Growth Rate | Fast |
| Zones | USDA Zones 9B–11 (grow in containers 4+) |
| Florida Native | No |
| Propagation | Cuttings, Seeds |
| Seasonal Characteristics | Evergreen in warm zones; blooms heavily in summer |
Wondering about your USDA Growing Zone and what you can grow? 🌎🌿 Learn how to find your Zone and grow tropical plants anywhere—Florida to Alaska! 👉 Read the full blog here!
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