Colocasia – Illustris – Elephant’s Ear – Colocasia esculenta

Adapatable as House Plant

Award Winner

Dead-Heading Not Necessary

Heat Tolerant

Foliage Interest

Water Plant

Maintenance Notes

According to the Humane Society of American Colocasia plants can be toxic to pets. This is means that the plants are generally identified as having the capability for producing a toxic reaction.

This plant is not edible and can be harmful to humans if ingested.

Colocasia form tubers and these tubers can be stored for replanting in the spring. To dig and store tubers follow these directions. First, allow frost to kill the top of the plant then cut back the stems and dig the tubers. Wash off any soil and then allow the tubers to dry. Wrap dry tubers in newspapers or pack them in peat moss. Label each tuber or group of tubers so you know what they are come spring. Store tubers in a dark, cool (35 to 45 F) place. Do not allow tubers to freeze.

Uses Notes

Great in large containers or in the landscape

Maintenance Category Easy

Water Category Average

Bloom Time

Flower Form Container, Landscape

pH B - pH 5.8 - 6.2

EC (2:1 Extraction Method) 0.6 - 0.9

Fertilization 150 - 200

Light Requirements Medium, High

Water Requirements Moderate to Moist

Rooting Out Temperature 65 - 72° Fahrenheit

Growing On Temperature 70 - 75° Fahrenheit

Holding Temperature 50 - 60° Fahrenheit

Planting and Timing Information

Spring through Summer Finish. 1 liner per 4-6" pot.

Finishing Times [weeks]
4-5" and Quart Pot : 7-9
6" and Gallon Pot : 9-11
7-9" Pot : 11-13
10-12" and Two Gallon Pot : 13-15

Pinching and Growth Regulators

Pinching not needed. PGRs are generally not needed. Sumagic is effective if needed.

Pest and Disease Management

General pest and disease practices as listed in notes.

Grower Tips

Colocasia can be cutback if needed.