There are several common and wide spread things that can kill bonsai plants. And there are usual comments from the fresh bonsai gardeners. They say that their bonsai tree has died or all of a sudden has turned brown.
However, it is not very difficult to keep your bonsai plant healthy and alive for a long time and it is not a big secret. The causes of bonsai tree illnesses and death are: lack of watering, too much of watering and living indoors without fresh air for too long. As a beginner you must find the real balance between the watering and over-watering and the last reason is easy to decide.
Moist but not wet – it must be your motto when it comes to the soil in the bonsai tray. You must keep it moist but not wet. How to monitor it? It is simple. When the surface of the soil in the tray is dry, look one centimeter below the surface and find out how the soil looks there. Under the surface the soil may be moist or even wet but not dry at all. Your bonsai tree does not need any water in this case. But the situation may be quite the opposite: the wet look of the soil surface may be absolutely dry below. Then your bonsai plant needs water extremely.
All the elements of the nature that surround trees outside are necessary for bonsai trees because these tiny plants are living creatures and they need it all for their normal and healthy life. They must get enough natural sunlight, rain and wind, snow and fresh air. For healthy life and normal growth of your bonsai all these nature features are very important and you must keep your bonsai not only inside but outside too. If you want to show your visitors your miniature miracle you can keep your bonsai creature inside for some time, but after you have a portion of admiration your handy work and its beauty you should remember one of the best rule of bonsai growing: you must keep your bonsai inside only one week a month and for three weeks your tree must live outside.
As you see there are only three major things you should do to have alive and healthy bonsai plant.
It must not be kept inside for too long; it must not be overwatered or underwatered. Any of this aspects may be harmful to your bonsai. Do not over water your plant; do not underwater it; let it live in its natural conditions outside.
If you learn this tender art, you will get any bonsai tree you desire and knowing how to rear your own bonsai tree and take care of it, you will grow a masterpiece.