How to grow Alocasia macrorrhizos well? Keep these cultivation tips in mind

1. During the growing season, apply a dilute liquid fertilizer 1 to 2 times a month, mainly nitrogen fertilizer mixed with phosphorus and potassium fertilizer. Alocasia macrorrhizos has a certain tolerance for shade, but to keep the leaves glossy green, in spring and autumn it is best placed in a shaded spot on a balcony or in a courtyard, and in summer moved indoors to a well-ventilated north-facing windowsill, avoiding direct sunlight.

2. The suitable growing temperature for Alocasia macrorrhizos is around 20 to 25°C. In winter, keeping the room temperature above 8°C is enough for it to overwinter safely; low temperatures make it prone to cold damage. In winter, it should be placed indoors on a south-facing windowsill, watering should be controlled, watering only when the soil is dry, and fertilizing stopped. Every 5 to 7 days, rinse the leaves once with clean water close to room temperature, and the leaf color can remain deep green. As long as the air is humid, the light is suitable, and nutrients are sufficient, the leaves will be large and spread out, and its ornamental value will be high.

3. Alocasia macrorrhizos often grows wild along ditches and roadsides in the south. It likes a warm, humid, semi-shaded environment. Alocasia macrorrhizos is vigorous by nature and simple to manage; the potting soil just should not be too heavy and clayey. It likes high temperatures, and grows vigorously at 30°C. When the light is strong, in order to adapt to the strong light, the leaves will grow small and thick, and turn yellow. Only when part of the sunlight is blocked and fertilizer and water are sufficient will the leaves grow large and spread out, with a rich gloss.

4. Alocasia macrorrhizos likes fertilizer; apply fertilizer once every two weeks during the growing period. When short of water, the lower leaves will droop, and if water is replenished in time, they will stand up again. The overwintering temperature for Alocasia macrorrhizos is above 10°C; below 10°C, the leaves will wither and the plant will enter a dormant state. During this period, control the water so the roots do not rot, and when the temperature rises again the following year, it will still grow huge leaves. The main reason household Alocasia macrorrhizos dies is that the winter temperature is low and also unstable; after the leaves turn yellow and all fall off, watering is continued, causing root rot and death.

5. The sap of Alocasia macrorrhizos is toxic (this is where the name "Guangdong poison" comes from). It must not be eaten by mistake or get into the eyes; in severe cases it can be life-threatening.

Following this method, you can grow Alocasia macrorrhizos well. If you still have questions about cultivation, just follow the Four Seasons Plants website; everything you want to know is here!

What to do when Alocasia macrorrhizos leaves droop and turn yellow; key points to note when growing Alocasia macrorrhizos.

Alocasia macrorrhizos is a common houseplant. Its stem tissue is fairly loose, and it has certain requirements for cultivation temperature and humidity. Normally, as long as we water and fertilize it properly, we can definitely grow a lush potted plant. However, people often find that Alocasia macrorrhizos develops yellowing. What exactly is going on? Let us take a look together now.

What to do when Alocasia macrorrhizos leaves droop and turn yellow

1. Temperature reasons

Actually, this is a very easy plant to grow. It can tolerate almost any normal temperature, which is to say that in spring, summer, and autumn there is basically no problem. But note that this is a plant native to the Americas, so in winter it is best to keep the temperature above 10°C, which can effectively prevent the leaves from turning yellow.

2. Improper watering

This plant is fairly fond of moisture. Yellow leaves are very likely caused by insufficient water supply, with the potting soil too dry, causing the plant to lack water and thus develop withered yellow leaves. Another possibility, which gardening friends can probably guess, is waterlogging. This situation causes the plant's roots to have difficulty breathing and disrupts nutrient transport, which shows up on the leaves as yellowing and wilting. Therefore, when watering, be sure to water evenly and control the amount reasonably.

3. Too little light

It is a light-loving plant, and during care it is best to give it light at a fixed time every day. The duration is best around three hours. Long-term lack of light is also one of the causes of yellow leaves.

4. Fertilizing mistakes

This is very similar to watering. Too much or too little fertilizer can actually cause yellow leaves. You should know that when a plant lacks nutrients, it will show slowed growth and yellowing leaves, while too much fertilizer or fertilizer that is too concentrated will cause the plant to suffer fertilizer damage, burn the roots, and damage the root system, and the plant will naturally wilt and turn yellow. The solution is the same: carry out fertilizing operations reasonably and appropriately, with the amount based on the size of the flower pot and the plant.

5. Pests and diseases

This situation is caused by not doing a good job of cleaning the potting soil normally, which then triggers disease. In this case, be sure to treat it with medication early, and immediately cut off and remove the diseased plants and diseased leaves to prevent spread and worsening.

Key points to note when growing Alocasia macrorrhizos

1. Stems. The stem tissue of Alocasia macrorrhizos is fairly loose, and if the water quality is poor it is easily contaminated, causing root rot and stem rot. Therefore, keep the water in the container clean. At the same time, when changing the water and the culture solution, also clean the slime on the tubers and roots, and cut off rotten roots. Temperature: Alocasia macrorrhizos is a very common household green potted plant, but because it is a tropical plant, it generally does not bloom in the north. However, if the temperature and other conditions at home are suitable, it will also bloom.

2. Temperature and humidity. Alocasia macrorrhizos can only grow well in an environment not below 18°C. If the temperature is below 18°C, Alocasia macrorrhizos will be in a dormant state and stop growing. This is especially important to note for indoor ornamental cultivation. Soil: it does not have high requirements for soil, but grows best in well-drained sandy loam or humus loam containing organic matter. Because Alocasia macrorrhizos by nature likes a warm, humid, and semi-shaded environment and is not cold-tolerant, during the growing season you must keep the potting soil moist. But it can also tolerate a little drought. Watering: in summer, place the flower pot in a semi-shaded, ventilated spot, and often spray water around it and on the leaf surfaces to increase air humidity, lower leaf temperature, and keep the leaves clean.

3. Watering and fertilizing. In summer, Alocasia macrorrhizos needs more water, but not excessively; it is suitable to alternate between dry and wet, and there must be no water accumulation in the soil, otherwise the tubers will rot. In winter it goes dormant, so water less and stop fertilizing. Fertilizing: because Alocasia macrorrhizos grows very fast, it is fairly fond of fertilizer. Apply a nitrogen, phosphorus, and potassium compound fertilizer 1 to 2 times a month (the nitrogen proportion can be appropriately higher). If a little ferrous sulfate can be applied, the leaves will be larger and greener. Long-term lack of fertilizer easily causes the lower part of the Alocasia macrorrhizos stem to become bare, affecting its ornamental value. When the temperature drops and it enters the dormant period, fertilizing can be reduced or stopped. ⟦26 4. Toxicity. If you want the indoor Alocasia macrorrhizos to be small and delicate, then simply wait until its seedlings grow to about one chi and are suitable for placing at home, then immediately spray the whole plant with a 2% paclobutrazol solution. After that, the stems and leaves that grow will be no more than 40 cm tall, and the leaves will be thick and fleshy, with high ornamental value. Spraying once about every half a year can achieve a good height-control effect. The sap in the leaves of Alocasia macrorrhizos, after human contact, can cause skin itching, so be careful when touching it.

4. Toxicity. If you want to keep an Alocasia (Alocasia macrorrhizos, also known as giant taro) indoors and keep it small and compact, then simply wait until its seedlings have grown to about one chi (roughly 33 cm) and are a suitable size for the home, then immediately spray the whole plant with a 2% paclobutrazol solution. After that, any stems and leaves that grow will be no taller than 40 cm, and the leaves will be thick and plump, giving it high ornamental value. Spraying once about every six months will achieve a good height-control effect. The sap inside the leaves of Alocasia can cause skin itching after human contact, so be careful when handling it.

Hydroponic pruning method for Alocasia macrorrhizos

Hydroponic pruning method for Alocasia macrorrhizos: when the root system grows too long and too dense, it is necessary to appropriately cut off the old roots and shorten the long roots to promote the sprouting of new roots and enhance root vitality. In addition, if the plant's roots rot, the rotten roots should be cut off cleanly in time, and the water changed once every 1 to 2 days, until the plant sprouts new roots, only then returning to normal care.

Is Alocasia macrorrhizos toxic?

First of all, everyone should be reminded that the white sap in the stem of Alocasia macrorrhizos is toxic, and the water it drips is also toxic. Accidentally touching or eating its sap will cause discomfort in the throat and mouth, and a burning pain in the stomach. Special care should be taken to prevent young children from eating it by mistake. However, Alocasia macrorrhizos does not belong to the category of carcinogenic plants.

Secondly, when the skin comes into contact with the sap of Alocasia macrorrhizos, itching or strong irritation will occur, and contact of the eyes with the sap can cause severe conjunctivitis, or even blindness. Eating the stems and leaves by mistake will cause symptoms of nausea and pain, and in severe cases can also cause suffocation, leading to death from cardiac paralysis. Therefore, everyone should best minimize contact with Alocasia macrorrhizos, and families with small children had best not plant it, to avoid poisoning from children casually touching Alocasia macrorrhizos out of curiosity.

Although Alocasia macrorrhizos is nice to look at, we must also pay attention to its problems when planting it. If it is not cared for properly, the leaves are especially prone to turning yellow, and we must also be careful of its toxins to avoid unnecessary harm.

Alocasia macrorrhizos, scientific name Alocasia macrorrhizos. It is a fairly high-end evergreen plant. Many people do not know much about how to grow Alocasia macrorrhizos. Below, we will explain it, and also share the key points to note when growing Alocasia macrorrhizos, hoping everyone will pay attention.

How to grow Alocasia macrorrhizos:

As an evergreen plant, Alocasia macrorrhizos can grow to more than 2 m at its largest. Its leaves are like fans, fairly large, and the leaf stalks are very long, so when the wind blows it feels as if it might topple. The leaf edges are wavy and fairly attractive. Generally, short plants are used as household potted plants to decorate the home. So how should such a good plant be grown? Before growing it, you need to know its habits.

Alocasia macrorrhizos is a tropical rainforest plant, so it likes to grow in places with relatively high humidity, and it also needs plenty of sunlight. The most suitable temperature is around 25°C. It is a semi-shaded plant. As for fertilizer, rotted leaf soil and some humus soil can also be used, and the nutrition should be fairly rich. If grown hydroponically, the nutrient solution in the water needs to be replenished in time.

Alocasia macrorrhizos is generally divided into two types: soil culture and hydroponic culture. But whether hydroponic or soil-cultured, under suitable conditions it will bloom. If Alocasia macrorrhizos is soil-cultured, its requirements for nutrient-rich soil are not that high, but good ventilation and drainage must be ensured. If the soil is rich in organic matter, it helps its growth, and during cultivation a certain humidity must be maintained in the soil.

Alocasia macrorrhizos is an evergreen plant, but it grows very quickly. In the process of growing it to maturity, in order to obtain healthy Alocasia macrorrhizos that can bloom, a certain amount of fertilizer must be applied, but not too much; eutrophication is not good. In this way, with careful care, the leaves of Alocasia macrorrhizos will grow large and good.

Alocasia macrorrhizos greatly likes sunlight. If it lacks sunlight, its stems will grow fairly weak, and if there is little light, the leaves will also become very thin, which is not conducive to photosynthesis. Regular light and appropriate watering can make the leaves firm.

1. Temperature: it is suitable to grow at 20°C; in winter it basically does not grow. In winter, put it indoors to keep it warm, otherwise it will easily die.

2. Watering: be cautious with watering, and do it appropriately. Water more in summer and less in winter. When soil-cultured, there must not be too much water, to avoid water accumulation. When hydroponic, water less to avoid waterlogging.

3. Light: if Alocasia macrorrhizos is exposed to direct sunlight, transpiration will be excessive and it will then wilt. Therefore, when growing Alocasia macrorrhizos, place it in a cool spot, but it should receive scattered light. In winter, take it out to sunbathe often.

Key points to note when growing Alocasia macrorrhizos:

Alocasia macrorrhizos is fairly easy to keep alive, but if some necessary details are neglected, it can also lead to failure. Moreover, some situations that occur in the daily care of Alocasia macrorrhizos need to be dealt with in time. Below are some key points to note and solutions to sudden situations.

1. What to do if Alocasia macrorrhizos has root rot

This most easily happens with soil-cultured Alocasia macrorrhizos. If in summer the humidity in the pot is too high, or there is water accumulation, and so on, it can all cause root rot. The solution is to cut off the rotten roots, exposing the healthy root parts. Then dry the roots, but not for too long; during this period, appropriately sprinkle water on the leaves and stalks. After they heal, plant them in sandy soil and do not water. Later, when dry, water again, and place in a ventilated spot.

2. Is Alocasia macrorrhizos dripping water in the morning because it is sick?

If the humidity of Alocasia macrorrhizos reaches a certain level, then due to changes in temperature difference, it will cause dripping, which is where the name Alocasia macrorrhizos comes from.

3. Notes on hydroponic Alocasia macrorrhizos

For hydroponic Alocasia macrorrhizos, first pay attention to light, and the water in the container is stagnant water, so the water must be changed regularly to ensure the content in the water and thus the respiration of the roots. When changing the water, it is suggested to clean its roots. Also note that there should not be too much water; just covering the roots is enough.

4. What to do if the leaves of Alocasia macrorrhizos collapse

If when watering, care is not taken to water the leaves and leaf stalks, it will cause a situation where the bottom is wet and the top is dry. With insufficient water supply, the leaves will wilt. Another case is too long a period of light, where direct sunlight causes excessive transpiration, and then Alocasia macrorrhizos falls over. You can place it in a cool spot and then sprinkle a small amount of water on the leaves.

5. What to do if Alocasia macrorrhizos grows too tall

Alocasia macrorrhizos grows too tall because it has sufficient nutrients, so it grows fairly quickly. You can prepare a 2% paclobutrazol solution and then spray it, so its height will not exceed 50 cm. Spraying once about every 6 months can achieve height control.