Can Phalaenopsis be fertilized in this season, and when should you not fertilize?
Among the many flowers, Phalaenopsis (moth orchid) has become a "favorite" of many flower lovers in recent years, and the reason is simple: first, its flower language is auspicious, carrying the good meaning of a bright future, and second, its flowers are unique, so no matter how you decorate your home, a casual placement instantly elevates it.

On the flower-growing journey, some may think that a simple watering is enough, but in fact, during the growing period, if you want the flowers to last longer and the colors to be more vivid and eye-catching, you need to arrange "fertilizer" reasonably. So, specifically when should you fertilize, and what fertilizer should you use? There is really quite a lot of know-how involved.

Let's talk about fertilizing in detail. Phalaenopsis is a relatively fast-growing flower, so giving an appropriate amount of fertilizer during the growing period is essential, and its fertilizing principle is to apply frequently but lightly each time, meaning the fertilizer needs to be diluted before use and concentrated fertilizer cannot be used; specifically, you can also follow the instructions after purchase.
Generally speaking, from June to September, Phalaenopsis is in its peak season for growing new roots and sprouting new leaves, so it can be fertilized appropriately at this time. It is recommended to fertilize once every week, using liquid fertilizer diluted with 2000 times water, sprayed on the leaves and the potting medium in the pot. However, in summer when the temperature exceeds 30°C, you should stop for two or three times and not force-feed, because extreme high temperatures will cause the plant to enter a dormant state.

After October, when the weather turns cooler, Phalaenopsis will grow slower than before, so you should fertilize less at this time. If too much fertilizer is given, it easily causes it to grow only leaves without blooming, which would be a pity.
In addition, there are two periods when you must not fertilize. One is winter and when it is blooming; fertilizing at these times will be too much for the roots and can easily cause root rot. Also, there is the period just after repotting, when the roots are still in the recovery stage; fertilizing will only increase the burden, and only normal care at this time can let it grow roots with peace of mind.

Finally, after fertilizing, you need to observe the growth of the Phalaenopsis more. If you find that the leaves have become greener and the flowers more vivid, then it shows that the fertilizing is effective and you did it right. If the leaves are still yellowing and curling, then there may be a problem with the fertilizing. At this time, consider whether you applied too much or the fertilizer was too concentrated. At the same time, to avoid further damage to the plant's roots, you must flush the potting soil with clean water, and afterward stop using fertilizer.