How to Grow Alocasia Macrorrhiza in India

If you want to grow a rare and unique plant, then Alocasia Macrorrhiza is a great choice. Learn all about its growing requirements!

Alocasia Macrorrhiza

The Giant Taro is an extraordinary attention grabber, thanks to its colossal leaves, which always leave the onlooker stunned. It is quite rare to come by, and hence if you have it in your garden collection, it will be a sight to behold! Continue reading to gain knowledge of How to Grow Alocasia Macrorrhiza in India.

Botanical Name: Alocasia Macrorrhiza

Common Names: Giant Taro, Giant Upright Elephant’s Ears

Alocasia Macrorrhiza Information

Alocasia macrorrhiza, commonly known as Giant Taro, is an ornamental plant native to tropical regions of South and Southeast Asia. It is a perennial herbaceous plant that grows to heights of up to 10 feet (3 meters). The leaves of this plant are large, heart-shaped, and can reach up to 3 feet (1 meter) in length. The leaves have prominent veins and are a glossy dark green.

The plant produces underground stems, or rhizomes, that are edible and are used in some cuisines. It also produces small, yellow-green flowers. In some parts of Asia, the plant is also cultivated for its edible tubers.

Propagating Alocasia Macrorrhiza

Propagating Alocasia macrorrhiza can be done in several ways. The most common methods are division, stem cuttings, and tissue culture.

  • Division: Divide the rootball of an Alocasia macrorrhiza into two or more sections and replant each section in its own pot. Water regularly and provide bright, indirect light.
  • Stem Cuttings: Cut a stem with several leaves from a mature plant. Place the stem in a potting mix that is kept slightly moist. Water and provide bright, indirect light.
  • Tissue Culture: Tissue culture is a more advanced method and should only be attempted by those with the necessary experience and equipment. Tissue culture involves taking small pieces of a plant, such as a leaf or a shoot tip, and culturing them in a nutrient medium. When the tissue culture has developed roots and shoots, it can be transplanted into a pot.

Whichever method is used, Alocasia macrorrhiza should be given plenty of bright, indirect light and kept slightly moist. With proper care, the plant should thrive and will eventually produce new plants.

Requirements to Grow Alocasia Macrorrhiza



It prefers bright, indirect sunlight. It can handle a few hours of the direct morning or late afternoon sun, but too much intense direct sunlight can cause the leaves to burn. It’s best to keep it in an area where it will receive bright, indirect light most of the day.


The best soil for Alocasia macrorrhiza is a well-draining, loose, loamy soil with a slightly acidic pH (5.5-6.5). Adding organic matter such as compost or peat moss can help improve drainage and aeration.

The soil should be kept evenly moist but not soggy. To avoid root rot, be sure to provide good drainage by using a pot with drainage holes and a layer of gravel at the bottom.


Water regularly, allowing the top inch or two of soil to dry out slightly between waterings. Make sure to water the soil, not the plant’s leaves, as wet foliage can lead to leaf damage or disease.


Alocasia macrorrhiza prefers warm temperatures ranging from 65-75°F (18-24°C). It is not tolerant of temperatures below 55°F (12°C). It does not like fluctuating temperatures, so it is recommended not to keep it near cold drafts like ACs.


Monitor the humidity around your plant, as Alocasia Macrorrhiza prefers high humidity. If the humidity in your home is below 40%, consider misting the plant or placing it near a humidifier.

Taking Care of Alocasia Macrorrhiza

Alocasia Macrorrhiza 2



For Alocasia Macrorrhiza, a fertilizer with a balanced combination of nitrogen, phosphorus, and potassium is ideal. A 10-10-10 or 15-15-15 fertilizer, or one with similar NPK proportions, is recommended.

For best results, use a slow-release fertilizer with micronutrients such as iron and magnesium. Apply the fertilizer every two to four weeks during the growing season. Follow the manufacturer’s instructions when applying fertilizer, as too much can burn the plant’s leaves.

Pests and Diseases


1. Aphids
2. Mealybugs
3. Spider Mites
4. Scale Insects


1. Fungal Leaf Spot
2. Rhizoctonia Root Rot
3. Bacterial Blight
4. Pythium Root Rot

To get rid of these infestations and infections, we recommend using cotton balls dipped in alcohol to sterilize the plant. Also, spraying neem oil or insecticides/pesticides can be beneficial.

Alocasia Macrorrhiza Toxicity

Alocasia macrorrhiza is not considered to be toxic to animals or humans if ingested. However, the plant does contain oxalic acid, which can cause irritation to the skin and eyes.

Ingestion of the plant can also result in gastrointestinal distress, including vomiting, diarrhea, and abdominal pain. If ingested, it is best to seek medical attention immediately.

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