Spray this on your Radermachera sinica and its leaves will shine, it will shoot up tall, and tender new leaves will grow vigorously and even bloom

Radermachera sinica, also known as the bean tree, has a name that symbolizes happiness, celebration and beauty, making it very suitable whether kept at home or in the office. Some friends find their Radermachera sinica has yellowing or falling leaves. In fact, if you grow Radermachera sinica using the following tips, it will grow especially well, with branches and leaves growing like crazy:
Watering
When you see the potting soil is nearly dry, it needs watering. It cannot go without water for a long time, nor can it be watered too frequently; too little or too much water is no good. In summer, place it in a cooler spot and you can spray water around the leaves to increase air humidity.
Soil
Add some leaf mold, nutrient soil or the like to ordinary garden soil, making it more fertile and airy. Be sure to add some coarse sand or fine coal cinders; these granules can increase aeration and drainage.
Light
Radermachera sinica can normally be placed in the sun, but during the high temperatures of summer it must be placed in a well-ventilated spot with scattered light. Although it is a light-loving plant, it cannot take strong direct sunlight. If exposed to blazing sun, the tender leaves easily turn black; just move it to a slightly shaded spot and it will grow very healthily.
Repotting
If a potted Radermachera sinica is not repotted for a long time, the potting soil easily becomes compacted and poor, causing the plant to grow slowly. Repot once every two years.
Iron supplement
An iron deficiency can also cause leaves to curl, and even turn yellow or black, dry up and so on. Usually flower shops sell ferrous sulfate at about a yuan a bag, or the ferrous sulfate given as a free gift when buying plants; it is best for supplementing iron in Radermachera sinica.
Mix with water and pour it into the potting soil, and the leaves of Radermachera sinica will grow a rich green, glossy and shining, growing especially luxuriantly!
Fertilizing
It is a foliage plant, so only with more fertilizer can it grow vigorously. During the growing season you can water with some decomposed farmyard manure or organic fertilizer water, or use a very small amount of compound fertilizer.
For potted plants, about ten granules of compound fertilizer are enough; put them in water to dilute and dissolve, then water once every two weeks, or use monopotassium phosphate with a small amount of urea diluted in water to water it. The branches and leaves will grow luxuriantly and be full of green, and perhaps in May it will bloom with big, big flowers.