Clerodendrum thomsoniae, commonly known as Lagrima de Cristo, is an ornamental vine recognized for its distinctive blooms. Also called Bleeding Heart Vine, Glory Bower, and Bag Flower, this plant originates from tropical West Africa. Its unique beauty makes it a popular choice for both gardens and indoor cultivation worldwide.
Identifying Lagrima de Cristo
This evergreen vine has a twining growth habit, reaching 3 to 7 meters in its natural habitat. Its foliage consists of dark green, oval leaves, typically 8 to 17 centimeters long, with smooth edges and pointed tips. The flowers emerge in clusters of 8 to 20. Each bloom has a two-toned appearance: a pure white, balloon-like calyx, about 2.5 centimeters in diameter, encasing a vibrant scarlet or red, five-lobed corolla that protrudes from its tip. This vivid contrast gives the plant its “bleeding heart” common name.
Optimal Growing Environment
Lagrima de Cristo grows best in bright, indirect light, ideally receiving about 4 to 6 hours daily. Direct, intense sunlight can scorch leaves, while insufficient light may reduce flowering.
A well-draining, rich potting mix is important for this vine, as its roots are susceptible to rot in waterlogged conditions. A suitable blend often includes equal parts potting soil, peat, and perlite, ensuring both moisture retention and proper aeration. The plant prefers consistently moist soil but should never be soggy; water when the top 2 to 3 inches of soil feel dry to the touch.
Lagrima de Cristo thrives in warm temperatures, ideally 18°C to 28°C (65°F to 82°F) during the day, and prefers high humidity, typically around 60-70%. To increase humidity, especially in drier indoor environments, place the pot on a pebble tray filled with water or mist regularly. Protecting the plant from cold drafts is important, as it is sensitive to temperature fluctuations and is not frost tolerant.
Ongoing Care and Support
Pruning encourages bushier growth, controls its size, and promotes more prolific flowering, as flowers typically form on new growth. The best time for significant pruning is after a blooming cycle or at the end of the growing season. Remove any dead, damaged, or diseased stems to maintain plant vigor.
During its active growing season (spring and summer), Lagrima de Cristo requires regular fertilization. Apply a balanced liquid fertilizer, such as a 10-10-10 N-P-K ratio, every two to four weeks to support vigorous growth and abundant blooms. Reduce or cease fertilization during the plant’s dormant period in fall and winter.
As a vining plant, Clerodendrum thomsoniae needs structural support to climb. Provide a trellis, stake, or other suitable structure to allow the vine to twine and ascend, mimicking its natural growth habit. Without proper support, the plant may sprawl or become unmanageable. It can also be grown in hanging baskets, allowing its stems to cascade.
Propagation Techniques
Propagating Lagrima de Cristo is most commonly achieved through stem cuttings. Take healthy, non-flowering stem sections, about 4 to 6 inches long, in spring or early summer. Remove the lower leaves from the cutting to expose at least one node.
Dipping the cut end in rooting hormone enhances success rates. Plant the prepared cuttings in a moist, well-draining rooting medium, such as a mixture of peat and perlite or coarse sand. Maintain consistent moisture and provide warmth and bright, indirect light until roots develop, which typically occurs within a few weeks. While propagation from seed is possible, stem cuttings are preferred for faster, more reliable results.
Addressing Common Challenges
Pests such as spider mites, mealybugs, and whiteflies can occasionally infest Lagrima de Cristo. Regular inspection helps detect these pests early, and they can be controlled with organic solutions like neem oil or insecticidal soap.
Problems related to watering are common, with root rot caused by overly soggy soil. Ensure proper drainage and allow the topsoil to dry slightly between waterings to prevent this. Yellowing leaves can indicate overwatering, underwatering, or nutrient deficiencies. Browning leaf edges suggest low humidity or insufficient watering.
Is Lagrima de Cristo Safe?
A common concern for plant owners is the potential toxicity of their plants, especially around children and pets. Clerodendrum thomsoniae is non-toxic to humans and animals. However, note the distinction from the common bleeding heart plant (Lamprocapnos spectabilis), which is toxic.
While Lagrima de Cristo is not known to be harmful, ingestion is not recommended and could potentially cause mild stomach upset. Caution is advised; keep the plant out of reach of curious pets and small children to prevent any accidental ingestion.