Let's not laugh at why I asked such a poor question, because calamus is very difficult to grasp right and wrong. If you don't fertilize it, it will easily lead to lack of nutrition, so that the leaves will turn yellow and lose luster. If you fertilize it, calamus is particularly intolerant of fertilizer. If you don't grasp it well, you will easily over fertilize it.
Therefore, we should first observe your Acorus calamus in the cultivation process. If it grows well and the upper part of the ground is green, it means that the basic fertilizer in the flowerpot soil can meet its needs, so there is no need to add fertilizer. On the contrary, the growth speed of the plant is slow, and the spirit of the upper leaves is not good, so we need to supplement some fertilizer as soon as possible.
The most suitable for the growth of calamus is nitrogen fertilizer, and also the best is liquid fertilizer, just like the bean cake water is very good. It's a favorite fertilizer of calamus, which is not only good for growth, but also can't burn the root system.
The fertilization cycle of calamus is suggested to be maintained every half a month, which is the growth period. In addition, when adding fertilizer, the weeds in the flowerpot should be removed. Repeat for about two or three times. Before flowering, you can add a little p and K fertilizer, which can improve immunity and resist virus.
