Bleeding heart vine

The Bleeding heart vine (Clerodendrum thomsoniae) is a perennial tropical liana belonging to the Lamiaceae family. Renowned for its unique bi-colored flowers consisting of snowy-white calyces and bright red corollas, this plant serves as a popular specimen for interior landscaping and conservatory collections worldwide.

Native to the humid rainforests of West Africa, this species thrives in climates that mimic its natural habitat. It requires high humidity levels and consistent ambient temperatures to flourish. In non-tropical regions, it is primarily cultivated as a glasshouse or high-maintenance houseplant, as it cannot tolerate cold exposure or frost.

Botanically, the plant features vigorous woody stems that require substantial support structures. The leaves are ovate and evergreen, providing year-round texture. Agronomically, the focus is on maintaining a rich, well-draining soil mixture. The plant is particularly sensitive to soil compaction, necessitating periodic aeration and nutrient supplementation during the growing season.

Standard agrotechnical practices include moderate to high light exposure, avoidance of direct scorching sun, and meticulous water management. A distinct dormancy period during the winter, characterized by cooler temperatures and reduced hydration, is essential to induce heavy flowering during the subsequent spring season.

Common phytopathological risks include fungal infections such as powdery mildew, grey mold, cercospora leaf spot, phyllosticta leaf spot, and Pythium root rot. The crop is also susceptible to viral issues like the tobacco mosaic virus and parasitic nematode infestations. Professional care emphasizes sanitation and early identification of Botrytis blight to protect the plant's structural integrity.

• Systematic pruning to manage vine length and shape.
• Frequent misting to replicate natural tropical humidity.
• Monitoring for pest outbreaks to prevent systemic infection.