Growing Guide: Rang Jued

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