Kong Red Coleus, a popular ornamental plant, offers vibrant red foliage that adds dramatic color to various garden settings and containers. Its ease of care makes it a favorite for both experienced and new gardeners, providing consistent color.
Key Characteristics
Kong Red Coleus (Solenostemon scutellarioides ‘Kong Red’) is known for its distinct physical attributes, particularly its large, velvety leaves. These leaves display an intense, deep red coloration, often complemented by lighter green edges. The foliage can reach up to 8 inches across, creating a bold visual impact. This coleus variety typically grows 18 to 20 inches tall with a similar spread, showcasing an upright and spreading habit. Its coarse texture distinguishes it from other plants, making it a unique addition.
Optimal Growing Conditions
Light Requirements
Kong Red Coleus thrives in partial shade to full shade, making it an excellent choice for areas with less direct sunlight. While it can tolerate some partial sun, excessive direct sunlight can lead to leaf scorching and diminish its vibrant red color. Too little light might cause the plant to become leggy. Bright, indirect light ensures the most striking foliage coloration.
Watering Needs
Maintaining consistent moisture is important for Kong Red Coleus; it should never be waterlogged. The soil should remain evenly moist, but not soggy, to prevent root rot. Check the top inch of soil; if it feels dry, it is time to water. Container plants may require more frequent watering, sometimes daily during hot weather, due to faster evaporation. Watering in the morning helps hydration.
Soil Preferences
Kong Red Coleus prefers rich, well-draining soil with ample organic matter. A slightly acidic to neutral pH (5.6-7.5) supports its growth. Good aeration is beneficial for root health. Amending the soil with compost or manure before planting enhances fertility and drainage, promoting robust growth.
Temperature and Humidity
This plant thrives in warm conditions and is sensitive to cold temperatures; light frost is damaging. It is typically grown as an annual in most climates, behaving as a tender perennial only in warmer USDA zones 10-11. Ideal indoor temperatures range from 70-75°F for seed germination. Coleus appreciates average to higher humidity levels, ideally between 50% and 70%. If indoor air is dry, a humidifier can help.
Fertilization
Fertilizing Kong Red Coleus supports vibrant foliage and robust growth, especially during its active growing season in spring and summer. Apply a balanced, water-soluble fertilizer (e.g., 10-10-10 or 20-20-20 NPK) every two to four weeks. Water the plant thoroughly before applying fertilizer to aid absorption and prevent root burn. Avoid over-fertilization, as it can lead to dull coloration and decreased vigor.
Ongoing Care and Maintenance
Pinching and Pruning
Regular pinching and pruning encourage bushier growth and prevent legginess. Removing growing tips redirects the plant’s energy, promoting a more compact and full appearance. Kong Red Coleus flowers are not ornamentally significant and can detract from the foliage. Removing these flower spikes, known as deadheading, conserves the plant’s energy for producing more vibrant leaves.
Pest and Disease Management
Kong Red Coleus is generally low-maintenance but can be susceptible to common pests like aphids and mealybugs. Inspecting the plant regularly helps in early detection and treatment. Good air circulation and proper watering prevent common diseases like Alternaria, Botrytis, and Verticillium. If issues arise, prompt treatment with appropriate organic or chemical controls can manage them.
Propagating Kong Red Coleus
Propagating Kong Red Coleus from stem cuttings is a straightforward method to multiply plants. The best time for propagation is during the active growing season. Select a healthy stem and make a clean cut just below a node, ensuring the cutting is several inches long. Remove any leaves from the bottom inch or two.
Cuttings can be rooted in water or a moist potting mix. If rooting in water, place the cut end into a container, ensuring no leaves are submerged, and change the water every few days. For rooting in soil, insert the cutting into a well-draining, moist potting mix. Roots typically develop within two to three weeks.
Design and Placement Ideas
Kong Red Coleus offers versatility in landscape design, serving as a striking focal point with its bold, large leaves and vibrant red color. Its upright and spreading habit makes it an excellent choice for mixed containers, acting as a “thriller” plant surrounded by “filler” and “spiller” plants. It also performs well in window boxes, adding color to home exteriors.
For garden beds, Kong Red Coleus can be mass planted to create broad swaths of color or used as vibrant border edging. Its shade tolerance brightens dim garden areas. Companion plants that complement its red foliage include those with contrasting textures or colors, such as light green sweet potato vine or impatiens with white or red blooms. It is also suitable as an indoor plant.