Royal Hawaiian Elephant Ear Black Coral

 Royal Hawaiian Elephant Ear Black Coral is an eye-catching perennial prized for its rich, dark foliage that shimmers with a glossy sheen. Its large, heart-shaped leaves emerge deep green and quickly mature to a bold, near-black shade, creating dramatic contrast against lighter plantings. With a mature height of 3 to 4 feet and a spread of 2 to 3 feet, this variety adds a strong architectural presence whether planted in the landscape or showcased in containers. 

• Perennial tropical plant
• Upright, arching habit with bold, glossy foliage
• Leaves mature to a deep black shade
• Grows 3–4 feet tall and 2–3 feet wide
• Excellent for borders, accents, or container plantings

Plant in full sun to partial shade with moist, well-drained soil. Hardy in USDA zones 7 through 11, Royal Hawaiian Elephant Ear Black Coral brings dramatic color and texture to warm-season landscapes.

Maintenance

Despite its bold look, Royal Hawaiian Elephant Ear Black Coral is surprisingly easy to care for and thrives with minimal effort once established. Here’s how to keep it looking magnificent:

• Watering: Water regularly during the first growing season to promote strong root development. Once mature, ‘Black Coral’ enjoys consistent moisture but also tolerates short dry periods. Keep soil evenly moist, not soggy - allowing the top inch to dry between waterings helps prevent root issues. In containers, ensure excellent drainage and never let pots sit in standing water.
• Pruning: Minimal pruning is required. Remove old or damaged leaves at the base as they age to maintain a clean appearance. In cooler climates, cut back the foliage to the ground after the first frost - new leaves will emerge vigorously in spring.
• Fertilizing: Feed every 4-6 weeks during the growing season with a balanced, slow-release fertilizer or liquid plant food. Regular feeding enhances leaf size, color, and overall vigor. Reduce or stop feeding in late fall when the plant enters dormancy.
• Mulching: Apply a 2-3 inch layer of mulch around the base to retain soil moisture, regulate temperature, and suppress weeds. Keep mulch a few inches away from the crown to prevent rot. Refresh annually in spring to maintain nutrient-rich soil.
• Winter Care: In warm climates, ‘Black Coral’ remains evergreen year-round. In colder regions, treat it as a tender perennial: cut back foliage after frost and dig up the tubers before the ground freezes. Store them in a cool, dry place for replanting in spring. If overwintering in containers, bring pots indoors before the first frost and place in bright, indirect light with reduced watering.

Common Issues and How to Take Care of Them

‘Black Coral’ is tough and resilient, but a few manageable issues may appear in extreme conditions. Here’s how to handle them effectively:

• Leaf Yellowing: Often caused by overwatering or poor drainage. Let soil dry slightly between waterings and ensure proper drainage in both ground and container plantings.
• Sunburn or Scorch: Brown patches can occur if suddenly exposed to full sun. Gradually acclimate plants to brighter conditions or provide partial shade during the hottest hours.
• Spider Mites or Aphids: Occasionally appear on undersides of leaves. Wipe foliage with a damp cloth or treat with insecticidal soap or neem oil. Regular misting helps deter infestations in hot, dry weather.
• Wind Damage: Large leaves can tear in strong gusts. Plant in a sheltered location or use temporary windbreaks until fully established.
• Cold Shock: Exposure to temperatures below 50°F can cause leaf droop or dark spots. Move containers indoors or cover plants when cold snaps are expected.