Caladium ‘Burning Heart’ is a captivating foliage plant prized for its vibrant, heart-shaped leaves. This specific cultivar features striking red centers that bleed into deep green margins, often with contrasting veins, creating a dramatic visual impact. Its tropical appearance makes it a popular choice for adding a splash of intense color to garden beds, container arrangements, or as an indoor houseplant.
Planting and Growing Caladium ‘Burning Heart’
To successfully establish Caladium ‘Burning Heart’, plant corms after the last spring frost, when soil temperatures consistently remain above 65°F (18°C). For vibrant leaf coloration, ‘Burning Heart’ thrives in partial to full shade.
Before planting, prepare the soil to be well-draining and rich in organic matter. Incorporating compost or well-rotted manure enhances fertility and drainage. Plant the corms with the “eyes” facing upwards, approximately 1 to 2 inches deep and 8 to 12 inches apart. In cooler climates, starting corms indoors about 4-6 weeks before the last frost can give them a head start.
Essential Care for Caladium ‘Burning Heart’
Light
Caladium ‘Burning Heart’ flourishes in conditions of bright, indirect light or partial shade. Exposure to direct, intense sunlight, especially during the hottest parts of the day, can cause the leaves to scorch, resulting in brown, crispy edges. Conversely, too little light may lead to less vibrant coloring and leggy growth, reducing the plant’s overall aesthetic appeal. Finding a balance ensures the foliage maintains its rich coloration and compact form.
Watering
Consistent moisture is important for the healthy development of ‘Burning Heart’ caladiums. Keep the soil consistently moist but never waterlogged, as excessive wetness can lead to corm rot. Allow the top inch of soil to dry out slightly between waterings to prevent root issues. During periods of active growth, particularly in warmer weather, the plant may require more frequent watering to maintain adequate hydration.
Soil
The preferred soil for Caladium ‘Burning Heart’ is one that is well-draining, slightly acidic to neutral, and rich in organic matter. A good potting mix for containers often includes peat moss, perlite, and compost to provide the necessary drainage and nutrients. For garden beds, amending heavy clay soils with organic material will improve aeration and drainage, preventing water from pooling around the corms. Proper drainage helps avert fungal diseases and promotes robust root development.
Fertilizing
During the active growing season, from spring through early fall, ‘Burning Heart’ benefits from regular feeding. Apply a balanced liquid fertilizer, diluted to half strength, every two to four weeks to support vigorous foliage production. Cease fertilization as the plant begins to show signs of dormancy in the fall.
Temperature and Humidity
Caladium ‘Burning Heart’ thrives in warm conditions, preferring temperatures consistently above 65°F (18°C). They are sensitive to cold and will begin to decline if temperatures drop too low. High humidity is also beneficial for these tropical plants, contributing to larger, healthier leaves. In dry indoor environments, increasing humidity through methods like pebble trays or nearby humidifiers can create a more favorable growing atmosphere.
Winter Care and Dormancy
Caladiums naturally enter a dormant phase as temperatures cool and daylight hours shorten. In regions where winter temperatures fall below 60°F (15°C), ‘Burning Heart’ corms typically need to be lifted and stored. As the foliage begins to yellow and die back in the fall, gradually reduce watering to prepare the plant for its resting period.
Once the foliage has completely withered, carefully dig up the corms from the soil, being cautious not to damage them. Gently remove any excess soil and allow the corms to air dry in a cool, well-ventilated area for several days to cure. After curing, store the corms in a dark, dry, and well-ventilated location where temperatures remain between 50-60°F (10-15°C). Placing them in a breathable material like peat moss, vermiculite, or sawdust can help maintain optimal storage conditions until spring planting.
Addressing Common Problems
Leaf scorch, characterized by crispy brown edges, often indicates too much direct sunlight. Yellowing leaves can signal either overwatering or underwatering; adjusting the watering schedule is usually the solution. A general nutrient deficiency can also cause yellowing, which can be addressed with a balanced fertilizer.
Leggy growth typically points to insufficient light. Increasing bright, indirect light encourages more compact growth. Caladium ‘Burning Heart’ can occasionally attract common garden pests such as spider mites or aphids. A gentle spray with insecticidal soap can manage these infestations effectively.