1、 Can I

The expired milk can be used to water the flowers, but it can't be used directly. It should be fermented first. Otherwise, if you pour it directly into the basin soil, it will soon produce an unpleasant taste, and the heat emitted is easy to burn roots and affect growth. When fermenting, pour it directly into the container, add a small amount of water, seal it and expose it to the sun. It can be used after about one month. At this time, there will also be odor. It is recommended to ferment for more time, and the taste will be lighter over time

2、 Watering method

1. Overnight tea: overnight tea is harmful to human body and can't be drunk, but it can be used to water flowers. Because it is acidic water, it can promote the growth of some plants that like acidic soil. However, before watering, we should still observe the moisture degree of the soil. We can't irrigate blindly, otherwise it will also affect the growth

2. Rice washing water: rice washing water contains many trace elements, which can promote plant growth. However, it should also be fermented before use, otherwise it will burn the root system and be unfavorable to growth

3. Liangbaikai: it can also be poured with liangbaikai, which is easier to absorb than directly connected tap water. It can make plants grow more vigorously like the water that has been dried