Guide to Elephant Ear Colocasia

Elephant Ear Colocasia, also known as taro, is a tropical plant prized for its large, heart-shaped leaves that add a dramatic touch to gardens and landscapes.

History

Colocasia has been cultivated for thousands of years, particularly in tropical regions of Asia, Africa, and the Americas. It is not only grown for its ornamental value but also as a staple food crop in many cultures.

Common Names

Elephant Ear
Colocasia
Taro

Plant Characteristics

Height: Up to 6 feet tall
Width: Up to 6 feet wide
Leaves: Large, heart-shaped, dark green to almost black
Bloom Time: Does not typically flower
Sun Exposure: Partial shade to full shade
Soil Type: Moist, well-draining soil
Soil pH: Slightly acidic to neutral
Hardiness Zones: 9-11 (USDA)

Planting Guide

When to Plant: Plant in spring after the last frost or in fall before the first frost.
Where to Plant: Choose a spot with partial shade to full shade and moist, well-draining soil.
How to Plant: Dig a hole 2 to 4 times larger than the tuber. Plant the tuber so it sits 1 to 2 inches below the soil surface. Space plants 2 to 4 feet apart depending on the variety.
Mulching: Add a layer of mulch around the base to retain moisture and suppress weeds.

Care Instructions

Watering: Keep the soil consistently moist, especially during the growing season. Water regularly to prevent the soil from drying out.
Feeding: Fertilize monthly with a balanced fertilizer (e.g., 10-10-10).
Pruning: Remove faded or browning leaves as needed. Make cuts close to the tuber.
Propagation: Easily propagated by dividing tubers. Divide every 3-4 years to maintain vigor.

Pests and Diseases

Elephant Ear Colocasia is generally pest and disease-resistant. However, watch out for slugs and snails, and ensure good air circulation to prevent fungal diseases.

Uses

Landscaping: Ideal for garden beds, borders, and containers.
Cut Flowers: Not typically used as cut flowers.
Deer and Rabbit Resistant: Generally resistant to deer and rabbits.

Toxicity

All parts of Elephant Ear Colocasia are toxic if ingested. Keep it away from children and pets.

Fun Facts

Symbolism: In many cultures, Colocasia is a symbol of sustenance and prosperity due to its role as a food crop.
Hybrids: Various hybrids and cultivars have been developed, offering a range of leaf colors and sizes.