How Deep Do I Plant an Elephant Ear Bulb?

Planting depth for elephant ear bulbs depends on the size of the bulb. Small bulbs should be planted about 6 inches deep, while larger bulbs should be planted about 8 inches deep.

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Elephant ear bulbs (Colocasia esculenta) add a dramatic, tropical look to gardens in U.S. Department of Agriculture plant hardiness zones 7 through 11. The shield-shape leaves of elephant ear plants sprout directly from underground bulbs that resemble plump potatoes. To ensure healthy growth and vibrant leaf color, plant your elephant ear bulbs at the correct depth in well-drained soil.

What is an Elephant Ear Bulb?

An elephant ear bulb is actually a type of corm, which is an underground storage stem. Corms are similar to bulbs, but they are slightly different in structure. Both bulbs and corms are used to store food and energy for plants, and they help the plant to survive winter or dry periods. Corms are typically smaller than bulbs, and they have a flatter shape.

Why Do People Plant Elephant Ear Bulbs?

Most people who plant elephant ear bulbs do so for the aesthetic appeal. These plants produce large leaves that can be strikingly patterned or brightly colored. Some varieties of elephant ear plants can reach heights of six feet or more, making them a dramatic accent in any garden.

How Deep Do Elephant Ear Bulbs Need to Be Planted?

Elephant ear bulbs (Colocasia esculenta) need to be planted quite deeply — 6 to 8 inches deep in most cases. This is because they develop long, thick roots that anchor the plant securely in the ground. The rule of thumb is to plant elephant ear bulbs at a depth that is three times their width. For example, if you have aBulb that is 2 inches wide, you should plant it 6 inches deep.

What Happens If an Elephant Ear Bulb Is Planted Too Deep?

If you plant an elephant ear bulb too deep, the bulb will not get the necessary light and air it needs to grow. The bulb will also be more susceptible to rot.

How Often Should Elephant Ear Bulbs Be Planted?

Assuming you are planting your elephant ear bulb in the ground, the rule of thumb is to plant the bulb at a depth that is three times its height. So, if your elephant ear bulb is six inches tall, you would want to plant it at a depth of 18 inches.

What Are the Best Conditions for Planting Elephant Ear Bulbs?

Elephant ear bulbs need to be planted in well-drained, loose soil that is high in organic matter. They also prefer full sun to partial shade and a neutral to slightly acidic pH level (between 6.0 and 7.5). The best time to plant elephant ear bulbs is in the fall, about 6-8 weeks before the first frost.

How Do I Plant an Elephant Ear Bulb?

Most people are familiar with elephant ears (Colocasia esculenta) as massive houseplants or, in more tropical climates, as outdoor summertime bulbs. They are also called taro, dasheen or kalo, and come in many varieties that vary in leaf shape, color and size. No matter the variety, they all have huge heart-shaped leaves that are borne on thick stalks arising from an underground tuber.

Planting elephant ear bulbs is not difficult, but you must take care to plant them at the correct depth. In general, you should plant the bulbs 2 to 3 times as deep as they are tall. For example, if your elephant ear bulb is 4 inches tall, you should plant it 8 to 12 inches deep. The best time to plant elephant ear bulbs is in late spring or early summer after the threat of frost has passed.

How Do I Care for an Elephant Ear Bulb?

Elephant ears (Colocasia spp.) are dramatic, large-leaved plants that grow from tubers and make a bold statement in the garden. They are typically grown as annuals, but in warm winter climates, they can be planted outdoors and enjoyed year-round. Caring for an elephant ear bulb is not difficult, but there are a few things to keep in mind.

When planting your elephant ear bulbs, be sure to plant them deep enough. They should be buried about six to eight inches below the soil surface. This will help ensure that they have enough moisture during the growing season.

In terms of watering, elephant ears are notorious water-lovers. They will need to be watered on a regular basis, especially during the hot summer months. Be sure to keep the soil moist but not soggy. too much water can lead to root rot.

Fertilizing your elephant ear plants is also important. They will need a constant supply of nutrients to produce their large leaves. A good rule of thumb is to fertilize every two weeks with a balanced fertilizer such as 10-10-10.

Finally, when it comes to caring for an elephant ear bulb, it is important to remember that they are tropical plants. In colder climates, they will need to be overwintered indoors in order to survive the winter months.


It is recommended that you plant your elephant ear bulbs 6-8 weeks before your last frost date. If you live in an area with a longer growing season, you can plant the bulbs as soon as they are available. When planting, make sure to plant the bulbs with the pointed side up and space them about 8 inches apart. After planting, water the area well and keep it moist until new growth appears.

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