The cultivation methods and precautions of thread iron

The threaded iron tree, also known as the willow-patterned iron tree, twisted iron tree, and Philippine iron tree, is one of the cultivated varieties of the genus Dracaena in the Liliaceae family. Its leaves are emerald green, elegant in temperament, and can purify the air, making it very suitable for indoor cultivation. So what are the cultivation methods and precautions of thread iron? Let’s learn more about it below.

1. Soil selection

Loose, well-drained and well-ventilated soil should be used, such as imported peat with a specification of 5-40mm, which can be mixed with sandy loam.

2. Light temperature

Threaded iron likes light, but avoids direct sunlight. When growing indoors, place it in a well-lit area. The best growth temperature is between 15-30℃. In winter, you should keep warm to prevent the thread iron from being damaged by cold. In summer, pay attention to ventilation and cooling.

3. Reasonable fertilization

The demand for fertilizer of thread iron is not strict, but it requires slightly more fertilizer and water during the growth period. Under the condition of healthy plant growth, 1-2 times a month can be applied with a thin nitrogen, phosphorus and potassium balanced fertilizer or organic fertilizer . It is necessary to follow the principle of applying thin fertilizers frequently, and avoid concentrated fertilizers and raw fertilizers.

4. Watering tips

Thread iron likes a humid growing environment. It is generally required to be watered every 3-4 days during the growing period and every 1-2 days in summer. When watering, observe the soil in the pot. Wait until the surface of the soil turns white before watering. Stop watering when it is thoroughly watered.

5. Trimming and shaping

When pruning, use sterilized scissors to cut off the yellow leaves and branches to promote new growth of the plant. At the same time, we can also trim the threaded iron to create the shape we like.

6. Notes

(1) During the growth period of the thread iron, some yellow leaves or rotten leaves may appear. Be sure to trim them off in time.

(2) When applying fertilizer, do not allow the fertilizer to drip onto the leaves to avoid fertilizer damage and symptoms such as yellowing, blackening, and rotting of the leaves.

(3) In a high temperature and high humidity environment, thread iron is prone to leaf spot and anthracnose, so you should pay attention to maintaining a good ventilation environment. When symptoms occur, take early steps to treat them.

(4) The potting soil can be replaced once a year in spring. When using old pots or adding garden soil, the old pots can be directly soaked in potassium permanganate for half an hour for disinfection, and the soil can be disinfected at high temperature.



In general, the posture of the whorl iron is dignified and beautiful, and it is even more emerald and upright after being planted in groups, and has extremely high ornamental value. However, during the cultivation and care process, you need to pay attention to issues such as light, temperature, water, fertilizer, and do proper maintenance to allow the thread iron to thrive.