Maple leaves have been burned. Why? What should I do? In the following lines we tell you why this happens in summer and what you can do to avoid it.

Why do maple leaves burn?

Summer, a time of high temperatures and for fans of maple bonsai, is the most delicate time in terms of caring for these beautiful bonsai.

The leaves of the maples in summer are burned as an act of self-protection against the high temperatures of summer. To avoid the total evaporation of water, our bonsai lose part of the leaves.

What science says about this self-defense mechanism has to do with plant transpiration, which for those of you who don't know, is the loss of water in the form of vapor that occurs in all plants. The stomata close to prevent this perspiration and it is for this reason that the tips of the maple leaves end up burning and even the entire leaf.


If the maple leaves have already burned, what can I do?

Something very important that you should know is that your bonsai has not died, it has only burned the leaves, so you must continue to take care of it. There are people, especially beginners, who start in the world of bonsai with maples, do not know this self-defense mechanism and believe that bonsai is dead.

Here is a debate that we are not going to enter since Hugo Bonsai about the defoliation or not of the maples when the leaf burns. To summarize the two aspects, we are going to leave you with a few brief outlines of what happens in each case.

defoliate the maple

If we defoliate the maple, removing the leaves that have been burned, we are forcing the maple to start its growth process again with the development of new buds and new budding. With this defoliation we will have new leaves and we will enjoy the color of the blind maples in autumn.

defoliate the maple

There are many people who recommend not defoliating, but rather letting the maple remove the leaves naturally. We won't have the pretty color of the maple in the fall and we'll miss its colors, but this is the most natural process. The maple will save all its energy for the fall and winter and will sprout strongly in the spring.

What can I do so that the maple leaves do not burn?

We have to bear in mind that the maple is a Japanese tree and it is used to that climate, a very different climate from the one we have in Spain. Follow the steps below and you can prevent leaf burn:

  • Use shade nets. Avoid direct sun contact with the maple, as it will almost certainly burn the leaf.
  • Check the irrigation. In summer, all bonsai, not just maples, need more frequent watering. Prevent the substrate from being dry for a long time. With a well-drained substrate, you can water 2 times a day and even up to 3 depending on where you live.
  • Create a moist environment. There are many possibilities here, such as putting buckets of water around the bonsai.

Puddle the plates of the bonsai pots so that the water evaporates, generating that humidity. But be careful with the waterlogging of the roots.

Another solution that works very well as we have seen is to place your maple on a grass base. The grass generates that moisture when we water it that will help the maple stay cooler.

And this has been all about this article, we hope you liked it and that it can help you in the care of your maple bonsai.

Until next time, friends.

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