How to care for your Alocasia (Elephant Ear) Plant

Alocasias are striking additions to any indoor garden. With an affinity for warmth and humidity, Alocasias bring a touch of the tropics to your space. Whether you're a beginner or a seasoned plant enthusiast, the unique foliage of Alocasias makes them a captivating choice for all plant lovers!

Alocasia plants, also known as an Elephant Ear plants, comprises approximately 90 different species of perennial, flowering, rhizomatous, or tuberous tropical plants and are characterized by large, heart-shaped or arrow-shaped leaves that appear to come from the ground. The large leaf size resemble elephant ears which is how the Alocasia plant got the nickname. 

This popular houseplant originates from tropical and subtropical forests across Asia, like India, the Philippines, Malaysia, as well as eastern Australia. They were first discovered as explorers and botanists explored deeper into tropical and subtropical jungles in the 19th and 20th centuries. 

By the 1850s, the hybridization of alocasias had become popular among horticulturists with more than 90 species to collect and splice. We now use them in homes as decorative tropical houseplants and in landscaping due to their wide range in size, from 2 to 10 feet, and expressive colors. 

Fun Fact: The Alocasia genus continues to expand as botanists explore further and technology advances, as seen in the 2024 identification of Alocasia sakonakhonensis in Indonesia. 

Collectors and plant parents love Elephant Ear plants as they’re relatively low-maintenance, and grow quickly once you establish an ideal environment. With this guide, you can prevent yellowing or drooping leaves and maintain your elephant ear in the ideal environment to bring a touch of the tropics to your space. 

Pro Tip: Alocasia Elephant Ear plants contain calcium oxalates, which can be toxic to both pets and humans if ingested. The Calathea is a good pet-friendly alternative. 

The Alocasia Elephant Ear originates in the tropics and subtropical regions across the Himalayas and Asia, as well as in eastern Australia, particularly in flatland or low-elevation zones. Some species have even been found adjacent to swamps within these forests. They require high humidity levels and warm temperatures that mimic their natural habitat for optimal growth. Because they grow under a tree canopy that filters direct sunlight, they thrive in shady spots in gardens or in rooms where they’re placed in ambient (not direct) sunlight. While they use the forest canopy for their own survival, their large foliage does the same for small creatures as their leaves can grow up to 36” wide providing shelter and hiding spaces and they range in height from 2-10 feet. 

Their natural soil conditions are rich in substrate and well-draining to support the Elephant Ear’s rapid growth of a leaf every 1-2 weeks. 

Fun Fact: Elephant Ears, like the Alocasia macrorrhizos, were cultivated for their starchy rhizomes which were cooked and eaten as a staple food source from India to Southwest Asia. 

Now that you know how they thrive in the wild and where they come from, here’s the specifications and how to care for your Elephant Ear plant.

This fast growing and lush tropical houseplant has been given multiple nicknames since its discovery in the 1800s, not to mention has multiple cultivars. Here’s the classifications so you can identify your species of Alocasia.

Alocasia Elephant Ear plants are fast-growing and easy to care for in the right conditions. Unlike most plants that require pots with ample room for their roots, the Alocasia prefers to be planted in close-fitting pots that fit its rhizome and tubers with 20-30% substrate space. 

Fun fact: The Elephant Ear nickname is not exclusive to Alocasia, but rather refers to ornamental plants with large leaves that resemble elephant ears belonging to three different genera: Colocasia, Alocasia, and Xanthosoma. The leaves of the Alocasia Elephant ear range from 8” to over 36” long, depending on the species. 

Water your Elephant Ear plant once a week when the soil gets dry about 1 to 2 inches down with your finger or a water meter. If you live in a dryer climate, keep your heat turned up, check their soil every other day to ensure it hasn’t dried out too much and is not too moist. Excessive moisture can cause root rot and other health issues. 

The Alocasia prefers dim or filtered light for at least 4 hours a day, rather than direct light, which can scorch the leaves. Remember, these plants come from tropical forests where they typically receive light filtered through trees and other foliage. 

If you’re planting Elephant Ears outside in landscaping, locations that do not receive direct sunlight or are in the shade of taller plants like trees with foliage can help create the ideal blend of brightness. 

The Alocasia Elephant Ear’s origin in regions rich in rainfall makes it well-tolerant of moisture and prefers room humidity to be at least 50% and up to 80%, to mimic tropical conditions. Use a humidifier with a built-in humidistat in the room to monitor and maintain humidity levels, along with plant groupings or a pebble tray with water under the pot. 

For the healthy growth of your elephant ear, temperatures should be maintained at 65-85°F. This plant prefers a warm climate and in temperatures below 50°F (10°C), it may go dormant or into shock.

Pro-Tip: When spring comes, remember to slowly acclimate Alocasia plants if you move them back outside to prevent shock!

The Elephant Ear’s iconic leaves changing color can be your first indication of suboptimal conditions. Here are some of the most common causes of illness in the Alocasia plant, along with steps to begin treating them. 

If the stems start to appear lighter in color or the leaves change color and become yellow, try reducing the frequency of watering. Check the top few inches of your potting mix to make sure it isn’t waterlogged or too dry. 

If the potting mix seems soggy, inspect the drainage holes to ensure they are not clogged. Then, replace the mix and set a reminder in your calendar to schedule future waterings, so you don’t accidentally overwater. 

If the soil is too dry, the leaves will appear to curl inwards and turn yellow or brown. Water the soil until it feels damp but not wet, and keep a close watch on whether the leaves recover. Don’t be afraid to prune so your elephant ear can focus on new/healthy growth. 

Like humans, Alocasia plants can suffer from sun and leaf burn when exposed to excessive direct sunlight. Drooping leaves with brown spots that expand to take over the whole leaf or yellowing or an orange tint are signs of leaf burn in Alocasia plants. 

If you see these signs:

• Move the pot to another position with only indirect light exposure

• Prune any leaves that appear mostly brown/badly damaged to help the plant focus on new growth

• Ensure soil remains adequately watered

Leaf burn, the yellowing or browning along the edges of the leaves, can occur not just from direct sunlight but also from overfertilizing your Elephant Ear. In areas with lower humidity, the plant will have a higher vapor pressure deficit (VPD). This means they lose water and absorb nutrients quicker, leading to a higher sensitivity to minerals, so lighter fertilization is recommended.

The alocasia is also sensitive to minerals in tap water, try using distilled or rainwater to keep the foliage looking vibrant if direct sunlight and your fertilizer have been ruled out as causes of leaf burn.

This Aroid plant can develop root rot if left in standing water, oversaturated soil or insufficient light. If you inspect the drainage holes of the pot and detect a foul smell like rotten eggs, musky tones, or fish, you may be dealing with root rot. 

If you suspect root rot:

1. Remove the plant from its potting mix and rinse the roots clean. 

2. Inspect the roots for discolored and mushy segments. This is what root rot looks like.

3. Use sharp and disinfected shears to trim any roots that appear brown/discolored, smelly, or mushy.

4. Now use a fungicide on the pot to clear any bacteria or fungus that may have developed. 

5. Last, rinse the roots again with clean, running water and repot in a well-aerated fresh potting mix. 

When choosing a potting mix, select one with lots of chunky media including perlite, pine bark, and coco coir to provide the well-draining and aerated blend. Our Coco bag is designed specifically for plants like Boston Fern, Hoya, and Alocasia (Elephant's Ear.) 

Elephant Ear plants are fast-growing, which means they have high nutrient demands to help them mature and flower. Supplementing with a balanced liquid fertilizer like our Arber Plant Food during their non-dormant cycles in spring and summer helps them grow new leaves and supports them when they flower in maturity. In the winter months, when alocasias go dormant, remember to dilute to half strength or stop supplementing to prevent leaf burn. 

With 90 species of Elephant Ear Alocasia plants to choose from, it can feel hard to decide. We can help. Here’s a few staff favorites with the reasons we love them.

Alocasia Dragon Scale
One of the most popular Alocasia plants, Dragon Scale is known for its textured silver-green leaves that resemble reptile scales. We love it because it looks exotic while staying compact enough for shelves, desks, and smaller indoor spaces.

Alocasia Silver Dragon
Silver Dragon features thick, silvery leaves with deep green veining that gives it an almost metallic appearance. It's a favorite for collectors who want a rare-looking houseplant without needing a ton of space.

Alocasia Black Velvet
This compact Alocasia stands out with dark, velvety leaves and bright white veins. We love Black Velvet because it delivers big visual impact in a small package, making it perfect for plant shelves and terrariums.

Alocasia Ninja Tricolor
Ninja Tricolor combines deep green foliage with splashes of creamy white variegation, making every leaf unique. We love it because it offers the dramatic look of a rare variegated Alocasia while maintaining a compact growth habit.