Causes of and Solutions for Hollow Roots in Phalaenopsis (Moth Orchids)

The worst thing when growing Phalaenopsis orchids is hollow roots! A perfectly good orchid, and when you pull it apart to look, the roots are all hollow - it really breaks your heart. In fact, hollow roots are always the result of care details that were not done properly. Below is a summary of several common causes.

1. Watering

Watering is absolutely the number one killer of Phalaenopsis orchid roots! If you water too often, the medium stays soggy all the time, and the roots rot after being soaked too long and turn hollow; if you always forget to water, the roots dry out from long-term lack of water and also become hollow. When growing Phalaenopsis orchids you have to get the balance of "dry and wet" right - water thoroughly only when the surface of the medium feels dry.

2. Temperature

Phalaenopsis orchids are delicate tropical flowers and fear sudden drops in temperature above all! Especially in autumn and winter, if you forget to bring them back indoors at night, the cold air chills them, root vigor declines, and they slowly become hollow. You should keep an eye on the weather forecast and keep them warm in advance.

3.Not repotting

Many people bring home Phalaenopsis orchids that still have their seedling cups and, thinking it saves trouble, never take them out of the cups. This is a big mistake! The roots are stuffy in the small cup with no airflow, and over time they become oxygen-starved and end up as hollow roots. It is best to move them into a breathable transparent orchid pot as soon as they arrive home, so the roots can breathe freely!

4. Bare roots

If you find Phalaenopsis orchid roots growing out of the pot and exposed to the air, never ignore it! The air is too dry, the roots lose water quickly, and over time their ability to function weakens and they slowly become hollow. When you see exposed roots, tuck them back into the medium promptly, or wrap them in moss to keep them moist.

5. Growing medium

Some flower lovers fertilize too heavily, or the medium they use is itself high in salt, so the roots not only cannot absorb nutrients but also lose water and become hollow. When choosing a medium, use loose, breathable sphagnum moss or bark as much as possible, and follow "light but frequent fertilizing" when feeding.

First aid for hollow roots

If you find hollow roots, do not rush to soak them in lots of water! First take the Phalaenopsis orchid out of the pot, gently clean up the rotten roots, and use a spray bottle to mist the roots to keep them moist. Wait 2 - 3days, and once you see white crystal tips emerging, water normally again. At this stage, absolutely do not water too much out of impatience - give the roots time to "catch their breath" so they can grow strong again!

In short, growing Phalaenopsis orchids is all about paying attention to these small details. Avoid these pitfalls, and only then will they have strong roots and green leaves and bloom every year.