The Alocasia dragon scale is primarily grown for its stunning foliage but does produce insignificant spathe-like flowers in the spring and summer months. Many growers choose to cut the flowers off in order to redirect the plant’s energy back to the foliage, but this is optional.
Light
Accustomed to the dappled light of the rainforest understory, dragon scale Alocasia does best with bright indirect light. Avoid exposure to direct sunlight as it is susceptible to leaf burn. Ensure that you rotate your plant regularly to keep the growth even on all sides.
Soil
Dragon scale Alocasias need a chunky, well-draining potting mix. A soilless mixture of equal parts coco coir, perlite, and orchid bark is ideal, but you can also substitute the coco coir for a sandy potting soil. Avoid using straight potting soil as the plant is more likely to suffer from root rot in a dense medium.
Water
Dragon scale Alocasia requires regular watering and soil should not be allowed to dry out. That being said, it is more tolerant of missing the occasional watering than some other varieties of Alocasia. Allow the top 1 to 2 inches of soil to dry out between waterings and then water thoroughly. If you are growing your Alocasia dragon scale in a soilless potting mix it is best to water by placing it in a small container or bowl filled with water and leaving it to soak for 10 to 15 minutes. This method allows the organic components in the soilless mix to fully absorb the water. This is sometimes called the “bottom watering” method. Bottom watering only works if your plant is potted in a container with drainage holes at the bottom. Once your plant is finished soaking, allow all of the excess water to drain from the pot before returning it to its original location.
Temperature and Humidity
Like most Alocasias, dragon scale Alocasia thrives in high humidity - 60% to 80% humidity is ideal. It does well in terrariums or mini-greenhouses, or with a small humidifier placed nearby. They do well in typical indoor temperatures from 55 degrees Fahrenheit to 80 degrees Fahrenheit. Be aware that consistent exposure to low temperatures may cause the plant to enter dormancy.
Fertilizer
Alocasias are considered heavy feeders and the dragon scale is no exception. In addition to a potting mix that has plenty of organic materials, the Alocasia dragon scale appreciates regular fertilizing during the spring and summer months. These aroids are thought to grow naturally on limestone outcrops in Borneo and grow best in calcium-rich, slightly alkaline conditions. Amending your potting mix with calcium carbonate or another calcium-rich fertilizer like bone meal will provide your dragon scale with the conditions it loves. It is also recommended that you feed your Alocasia dragon scale with a balanced liquid fertilizer once or twice a month during the growing season.
Propagating Alocasia Dragon Scale
Alocasia dragon scale can be propagated by division and growing corms. Most Alocasias can only be propagated once they are a few years old, so if you have a small plant that is less than one or two years old it is best to wait. Propagating Alocasias is not as simple as some other houseplants such as pothos, but can be done successfully by following a few simple steps. To propagate by division you will need a mature plant that has developed new smaller plants or pups. To propagate the Alocasia dragon scale by growing corms, follow these steps.
Potting and Repotting Alocasia Dragon Scale
Alocasia dragon scale doesn’t mind being slightly root bound and should be repotted once every 2 to 3 years or once roots begin growing out the bottom of the pot. It is best to repot these plants during mid spring to early summer when they are out of their dormant period and actively growing. Choose a pot that is 1 to 2 inches larger than the previous pot, and refresh as much of the potting medium as possible without damaging the plant’s roots. After your dragon scale has been repotted, water it thoroughly to help it settle into its new pot.
Common Pests & Plant Diseases
Common houseplant pests like fungus gnats, scale, spider mites, and thrips can all be an issue for an Alocasia dragon scale. Regularly inspect your plant for signs of pests and apply an insecticide at the first signs of an infestation. It is also susceptible to root rot, which is usually the result of improper watering and/or drainage.
Common Problems With Alocasia Dragon Scale
Under the right conditions these gorgeous plants can thrive indoors, but if their needs are not met you may experience some of the following common problems.
Dropping Leaves
If your Alocasia dragon scale is dropping its leaves it is most likely not receiving enough light, water, or humidity. Examine your plant’s growing conditions to determine what may be lacking. It is normal for Alocasias to enter a period of dormancy during the fall and winter months where they drop all of their leaves. This doesn’t always happen indoors, but it is possible. If your plant enters dormancy, don’t panic! Just cut back on watering and wait it out. In the early spring, you should begin to see signs of new growth.
Yellow Leaves
Yellow leaves on an Alocasia dragon scale often mean that your plant is being overwatered. Occasionally, it’s an indication of root rot. Cut back on watering to prevent additional leaves from yellowing, and consider checking the roots of your plant to catch any potential signs of root rot early.
Curling Leaves
If your Alocasia dragon scale has curling leaves, it’s usually a sign of a lack of moisture and humidity. Ensure that you are not underwatering your plant, and increase the humidity around your Alocasia if possible.
