Can rotten wood be used as flower fertilizer?

Yes, the light compound fertilizer is made of sawdust, moss soil, organic fertilizer and perlite produced by sawing wood. Sawdust has air permeability and water retention, and is rich in minerals needed by plants. It is an ideal organic fertilizer.

However, due to the incomplete decomposition of sawdust, it will generate a lot of heat when it continues to decompose, which may damage the root system of plants. Therefore, it is best to crush it, fully decompose it (pile it under wet backlight and let it rot), then expose it to the sun for sterilization, and then mix it into the flower soil evenly for use.