If a rubber tree feels comfortable in its environment and at its location, it will also develop aerial roots over time. An old rubber tree in the wild becomes a very impressive plant.
Above all, older rubber trees in the wild form aerial roots
What are aerial roots good for?
Many plants develop aerial roots. These often appear to be useless, but that is a completely wrong impression. With the help of these roots, the 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 native land, or in a southern country? When 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 whole 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 of a room. If you don't cut off the top, 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 disturb 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 can be seen much less often. So that the nutrient supply is correct, fertilize your rubber tree regularly.
The essentials in brief:
- Aerial roots are completely normal for the rubber tree
- they serve to absorb moisture and provide stability
- cutting not necessary, rather harmful
tips
Only cut off the aerial roots of your rubber tree if they can become a source of danger or if they disturb the harmonious overall picture of the plant too much.