I had the impression that there were many very hot days in September. I was wondering what was going to happen, but as soon as October arrived, the temperature dropped dramatically. Please take care of your health. The plants in the our nursery have begun to turn beautiful autumn colors due to the change in temperature without catching a cold. The fruits of the Japanese white oak, which are usually the first to turn bright red, have been followed by the fruits of the Japanese nipplewort and the crested kingfisher, which have also turned soft red over the past few days. The leaves of deciduous trees have also begun to turn red and yellow, creating a colorful landscape in the nursery. The mechanism of such autumn coloring is that plants begin to prepare for defoliation by sensing a drop in temperature, which causes a change in the sugar content in the leaves and enzyme activity, resulting in the production of pigments. （In other words, plants only become beautifully colored when they sense a change in temperature. Please expose your plants to the outside air and nurture them. The best part of bonsai is that you can enjoy the coloring of autumn leaves and fruits close at hand. Let’s enjoy it!

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