If a rubber tree feels comfortable in its environment and location, it will also develop aerial roots over time. An old rubber tree in the wild becomes a very impressive plant.
What are rubber tree aerial roots and should you cut them off?
Aerial roots in the rubber tree are normal and serve for moisture absorption and stability. Cutting is usually not necessary and can weaken the plant. Avoid aerial root formation through high humidity, sufficient watering and regular fertilization.
What are aerial roots good for?
Many plants develop aerial roots. These often seem useless, but that is a completely wrong impression. With the help of these roots, plants can absorb nutrients and moisture from the air. Orchids are a classic example of this.
Have you ever seen a rubber tree in its homeland, or in a southern country? Once the tree has reached a certain size, it develops aerial roots that can be as thick as a branch or even a trunk. These roots support the entire tree, which in its natural environment can have a huge crown and a trunk up to 2 meters thick.
How big can a rubber tree get?
As a houseplant, your rubber tree likes to grow up to the ceiling. If you don't cut off the tip, it will continue to grow under the ceiling. However, it only reaches its true size outdoors in a mild climate. There it can grow up to 40 meters high.
Can I just cut off the aerial roots?
Even if the rubber tree in your living room does not need support, you should not simply cut off the aerial roots. This could weaken the plant. It is better to redirect the aerial roots. However, sometimes this is not possible. Before the roots become a dangerous tripping hazard or disrupt the harmonious appearance of your tree too much, cut them off.
However, prevention is better than a cut. With high humidity and sufficient watering, the formation of aerial roots is much less likely to be seen. To ensure that the nutrient supply is correct, fertilize your rubber tree regularly.
The most important things in brief:
- Aerial roots are completely normal in rubber trees
- they serve to absorb moisture and provide stability
- cutting not necessary, rather harmful
Tip
Only cut off the aerial roots of your rubber tree if they can become a source of danger or disrupt the harmonious overall appearance of the plant too much.
