Red maple bonsai needs good drainage, loose and fertile soil. Can use saprophytic soil and garden soil to add a small amount of river sand to mix, add a small amount of bone meal to make base fertilizer..
In summer, it should be placed in the half shade to avoid strong sunlight exposure, and in the outdoor leeward and sunny growth period. It is not recommended to put it indoors. If the temperature is too low in winter, it can be put in a place with good indoor light
Red maple bonsai likes a humid environment. In summer, it needs to be watered more. When the temperature is too high, it needs to spray water to cool the leaves. At ordinary times, water less and keep the basin soil moist. To avoid rain, easy to rot.
Red maple bonsai has a certain cold resistance. When it is in the north in winter, it should be kept indoors for maintenance, and the indoor temperature should not be frozen. Keep normal temperature during growing period.
Once a month to apply thin fertilizer, fertilizer too much, will lead to growth too fast. From September on, we need to apply potassium fertilizer, such as potassium sulfate solution or plant ash leaching solution, to keep the leaves red.
Red maple bonsai is easy to suffer from powdery mildew, so it is necessary to strengthen ventilation, and use Dansen zinc wettable powder or methyl mop, carbendazim wettable powder to prevent and control. It is also vulnerable to the damage of longicorn. It can be sprayed with trichlorfon or imidacloprid.
