Will a Phalaenopsis die if it is never repotted, and is repotting once every two years okay?

In recent years, Phalaenopsis has become a favorite for many people, because its flowers are beautiful and striking, and the blooming flowers look like dancing butterflies, leaving a deep impression on anyone who sees them.

On the road of growing Phalaenopsis, usually watering should follow the principle of "water when dry, stop when wet," light should be placed in a spot with scattered light, and the temperature should be kept between 15-28 degrees Celsius, with an appropriate amount of fertilizer given during growth, so the plant will generally stay in good condition and bloom when it should. However, some netizens say that they are very careful with their care and follow the requirements, but the plant starts frequently dropping flower buds in the second year of care. Why does this happen?

In most cases, it is caused by the medium not being breathable. Generally speaking, the common media for Phalaenopsis are sphagnum moss, bark, and so on, and their characteristic is breathability. Under normal care, if the medium is not changed for more than 2 years, it is easy for the potting material to decompose and rot, or for nutrients to be insufficient, and so on.

When growing flowers and plants, whether to repot can also depend on the actual situation of your plant. For example, if it has been grown for 2 years and still looks especially vigorous, and the roots have not filled the pot, then the repotting time can be relaxed a bit, and it is even fine to delay it until 3 years. However, during this period you cannot just ignore it; it is best to dig into the soil every so often to check whether there is anything wrong in the soil.

But if you run into roots bursting out of the pot, or perhaps the substrate rotting, then you cannot hesitate, and should arrange repotting right away. Among these, the situation of "roots bursting out of the pot" can be judged by looking at a transparent pot, and you can also take photos with your phone at intervals to compare the root condition. If one day you see white roots wrapping the soil ball tightly, or even starting to push hard against the pot wall, with not even a tiny bit of growing space left, then this means the plant has grown and needs a pot one size larger, otherwise, if the roots are cramped for too long, nutrients and water cannot keep up, and the plant will easily droop.

And the other situation, which is relatively trickier than roots bursting out of the pot, is substrate rot. If you use potting materials such as sphagnum moss and bark, and suddenly smell a sour, foul odor, or even find that the potting material has become sticky and has grown black mold spots, then the potting material has rotted. Not only can it no longer let the roots breathe, it also easily causes pathogens to breed on the roots. The longer it is delayed, the greater the risk of root rot, so you must repot immediately.