How to Grow Alocasia? Detailed Guide to Cultivation Methods

SummarySoil: Alocasia needs loose, fertile, well-draining soil; you can also use peat mixed with water as a homemade substrate. Repotting: A new pot about 12cm in diameter can be used, planting 3 small seedlings per pot. Light requirements: Appropriate indirect light. Temperature: The suitable growing temperature is 20-30°C; below 13°C it will enter a dormant state. Watering: Water once every 3 days. Fertilizing: During the growing season, apply a compound fertilizer every 20 days or so, and reduce the amount of fertilizer after early autumn.

I. Cultivation Methods for Alocasia

1. Soil Requirements

Alocasia should be planted in well-draining, fertile, loose soil. You can also mix your own soil by combining peat with water and stirring evenly before planting. A 12cm pot can hold 350 milliliters of peat; one bag of peat is about 300 liters, which can fill about 800 pots.

2. Repotting

(1) If using an old pot to plant Alocasia, soak the old pot in a 1000-fold dilution of potassium permanganate for more than 30 minutes, then remove it, rinse it clean, and let it dry before use.

(2) Generally, Alocasia should be planted in a pot about 12cm in diameter, with 3 plants per pot. Before planting, first put in about 2cm of substrate, then place the seedlings in the pot, cover with soil up to the base of the plant, and fill the pot to about 9/10 full with soil.

3. Light Requirements

Alocasia is relatively tolerant of partial shade and should not be exposed to direct strong light, otherwise the leaf tips will scorch and turn brown, affecting its appearance. If placed in a dark environment, the plant's leaves will fade in color.

4. Growing Temperature

Alocasia is not cold-tolerant. The suitable growing temperature is 20-30°C. If the temperature drops to 13°C, the plant will enter a dormant state. The minimum winter temperature should not be lower than 12°C, otherwise the plant is prone to cold damage, causing the leaves to turn yellow and even die.

5. Timely Watering

Alocasia is drought-tolerant and prefers moisture. To keep the soil moist, water about once every 3 days. The amount of water can be controlled according to specific weather conditions. The plant needs a relatively large amount of water during the growing season and should be watered regularly to ensure normal growth.

6. Reasonable Fertilizing

During the growing season of Alocasia, to promote rapid growth, apply a compound fertilizer every 20 days or so, and apply liquid fertilizer every 15 days or so. After early autumn, appropriately reduce the amount of fertilizer. When repotting each year, apply sufficient base fertilizer. To promote leaf growth and a deeper green color, apply a dilute liquid fertilizer once a month.

7. Pest and Disease Control

The main disease of Alocasia is leaf spot, which often occurs on the leaves. If disease is found, promptly remove the affected leaves, then spray with 0.5-1% Bordeaux mixture or a 1000-fold dilution of 50% carbendazim for control.

II. Precautions for Growing Alocasia

1. Alocasia is a plant with fleshy roots and is prone to waterlogging. If overwatering causes water to accumulate at the bottom of the pot, it can easily lead to root rot. The plant is suited to growing in humid air; if the air is dry, the leaf tips can easily dry out.

2. In summer, when temperatures are high, to increase air humidity, you can spray water around the plant and on the leaves, which also helps lower the temperature and wash off dust.

3. During the flowering period, Alocasia should not be exposed to rain and should be placed in a ventilated, shaded, and dry place for care.

4. Generally, the plant's position should be adjusted at regular intervals, which is more conducive to the plant's growth.