The “bubblegum plant” (Plectranthus tomentosa) is an aromatic herb known for the sweet, fruity scent its leaves release when touched. This aroma, reminiscent of classic bubblegum, makes it a popular choice for ornamental and sensory gardens.
Understanding the Bubblegum Plant
The bubblegum plant (Plectranthus tomentosa) is also known as “Vicks Plant” or “Succulent Coleus.” This perennial succulent originates from South Africa and belongs to the mint family (Lamiaceae). Its species name, “tomentosa,” refers to the soft, fuzzy coating on its leaves.
It typically grows as a compact bush, 1 to 1.5 feet tall and up to 2.5 feet wide. Its broadly ovate leaves have scalloped margins and a fuzzy texture. Small, pale purple or lavender flowers appear in early spring and again in fall. The unique scent comes from volatile compounds within its leaves.
Cultivation and Care
Caring for the bubblegum plant is straightforward, suitable for both novice and experienced gardeners. Providing the right environment ensures healthy growth and maximizes its aromatic qualities.
Light Requirements
The bubblegum plant thrives in bright, indirect light to partial sun, ideally 4-6 hours daily. It tolerates some direct morning sun but needs protection from intense afternoon sun, which can scorch leaves. Insufficient light leads to leggy growth and diminished fragrance. Indoors, place it near a south-facing window with diffused light.
Watering Needs
As a succulent, Plectranthus tomentosa stores water in its fleshy leaves and is drought-tolerant. Allow the soil to dry out completely between waterings to prevent root rot. Overwatering causes leaves to yellow and become soggy, potentially leading to fungal diseases. During warmer months, water once a week; in winter, reduce frequency to every 2-3 weeks.
Soil and Potting
Well-draining soil is essential to prevent waterlogging and root issues. A specialized succulent or cactus potting mix, often containing sand, perlite, or grit, provides necessary drainage. The plant adapts to various soil pH levels but prefers a slightly acidic to neutral environment. When potting, ensure the container has adequate drainage holes.
Temperature and Humidity
The bubblegum plant prefers warm temperatures, ideally 60-75°F (15-24°C), and does not tolerate frost. If outdoor temperatures drop below 40°F (4°C), bring potted plants indoors. It adapts to average household humidity, but moderate to high levels (50-80%) are optimal. Misting leaves is not recommended as it can encourage fungal growth; consider a humidifier.
Fertilizing
The bubblegum plant is a light feeder and does not require frequent fertilization. During its active growing season (spring to fall), apply a balanced liquid fertilizer, diluted to half strength, every two weeks. Alternatively, a slow-release granular fertilizer once a year in early spring is effective. Over-fertilization can scorch leaves and negatively impact the plant’s appearance.
Propagating Your Bubblegum Plant
Propagating the bubblegum plant is simple, primarily achieved through stem cuttings. This method allows gardeners to easily multiply or share their plants.
Use sterilized scissors or shears to take 3-4 inch stem cuttings, ensuring each has at least 2-4 leaf nodes. Remove lower leaves to expose nodes, where roots emerge. Cuttings root in water or directly in soil.
For water propagation, place cuttings in filtered water, submerging nodes. Change water every few days. Roots typically form within 2-3 weeks. Once roots are an inch or two long, transplant into a well-draining potting mix. For direct soil planting, use a moistened succulent mix and keep it damp until roots establish.
Culinary and Other Uses
While primarily grown for its aromatic and ornamental appeal, the bubblegum plant has other uses. Its menthol-like fragrance, often compared to Vicks Vaporub, is used in folk medicine. Crushed leaves can clear nasal passages and ease congestion, or be steeped in boiling water for steam inhalation.
Some sources suggest culinary uses, such as flavoring desserts or teas. However, exercise caution and avoid ingestion if pesticides have been used. The plant’s strong scent also repels certain insects, making it a useful companion plant.
Troubleshooting Common Problems
Even with proper care, the bubblegum plant can encounter issues. Recognizing common problems and their solutions helps maintain a healthy, vibrant plant.
Leggy growth, characterized by stretched stems and sparse foliage, indicates insufficient light. Move the plant to a brighter location with more indirect sunlight for compact, bushier growth. Pruning leggy stems also promotes new, fuller growth.
Overwatering frequently causes root rot. Symptoms include yellowing leaves, a mushy stem base, or a foul odor from the soil. Allow the soil to dry out completely between waterings and ensure excellent drainage. If root rot is severe, repot into fresh, well-draining soil and trim affected roots.
Common houseplant pests like spider mites, mealybugs, and whiteflies can infest the bubblegum plant. Signs include sticky residue, webbing, or visible insects. Manage these by wiping leaves with a damp cloth or applying insecticidal soap or neem oil. Loss of scent or flavor can occur due to environmental stress, inadequate light, or nutrient deficiencies, corrected by adjusting care practices.