Colocasia ‘Sangria,’ commonly known as “Elephant Ear” due to its large foliage, is a striking ornamental plant. Its dark, dramatic leaves contrast vibrantly with red stems, making it a standout choice for gardens or potted specimens. This plant adds a tropical flair and distinctive beauty to any outdoor or indoor space.
Understanding Colocasia Sangria
Colocasia ‘Sangria’ has large, heart-shaped leaves that can appear deep purplish-black or bluish-green. Its most notable feature, which gives the plant its name, is the bright red to burgundy stems (petioles) and purple veins extending through the leaf blades. These vibrant stems contrast with the foliage. This plant grows in a clumping habit, reaching 4 to 6 feet tall with a 30 to 36-inch spread. It is a cultivated variety of Colocasia esculenta, native to southeastern Asia and the Indian subcontinent. Brian Williams specifically hybridized Colocasia ‘Sangria’, incorporating traits from the hardy Colocasia ‘Pink China’.
Colocasia Sangria Care
Light Needs
Colocasia ‘Sangria’ thrives in full sun to partial shade. In full sun, the plant exhibits more compact growth and brighter stem and leaf coloration. In shadier conditions, ‘Sangria’ can achieve its largest leaf size. Adequate light supports the plant’s vigor and maintains its distinctive coloration.
Watering Practices
This plant requires consistent moisture to flourish. Keep the soil moist but not waterlogged, as excessive standing water can lead to issues. Regular watering, often every couple of days, is necessary, especially during warmer periods. Wilting indicates insufficient watering, while overly soggy conditions can cause root problems.
Soil Requirements
The ideal soil for Colocasia ‘Sangria’ is rich, well-draining, and slightly acidic. Amending the soil with organic matter improves drainage and provides essential nutrients. A loose, organic soil mixture promotes healthy root development.
Temperature and Humidity
Colocasia ‘Sangria’ prefers warm temperatures and high humidity for optimal growth. It is hardy in USDA Zones 6 to 11. Consistent warmth supports vigorous foliage development. While it can tolerate some drought stress, consistent moisture and humidity contribute to its best performance.
Fertilizing Schedule
During the active growing season, Colocasia ‘Sangria’ benefits from consistent fertilization. A balanced, slow-release fertilizer promotes healthy growth. Apply fertilizer every 2 to 3 weeks to support the plant’s rapid development and large foliage. Some growers use formulas such as a 20-10-20 ratio.
Propagating Colocasia Sangria
Propagating Colocasia ‘Sangria’ is done through the division of its corms or offsets, which are small plantlets forming around the main corm’s base. The best time to divide these plants is during repotting or before dormancy. To divide, carefully unearth the plant and gently separate the smaller corms or offsets from the main corm, ensuring each new section has roots attached. Replant divisions into suitable soil, providing consistent moisture to help them establish.
Common Problems and Solutions
Colocasia ‘Sangria’ may exhibit yellowing leaves, often indicating an issue with water or nutrient availability. Ensure consistent soil moisture and a regular fertilizing schedule to prevent this. Brown leaf tips point to low humidity, suggesting the plant needs increased atmospheric moisture, especially in dry environments.
Pests such as spider mites and aphids can affect Colocasia ‘Sangria’. Regular inspection of foliage, particularly leaf undersides, helps detect pests early. Promptly address infestations with appropriate horticultural treatments. Fungal issues may arise in persistently wet or humid conditions, so ensure good air circulation and balanced watering.
Winter Care and Dormancy
For gardeners in non-tropical climates, preparing Colocasia ‘Sangria’ for winter involves managing its dormant period. Potted plants can be brought indoors before the first frost. Alternatively, in zones where the ground freezes, corms can be dug up from outdoor plantings. After digging, allow corms to dry completely, then store them in a cool, dark, dry location, ideally between 35 to 45 degrees Fahrenheit, often packed in peat moss or wrapped in newspaper. In spring, when temperatures rise and frost threat has passed, stored corms can be replanted.