The expired milk can be watered after sufficient deterioration treatment, but pay attention to the dosage.
Expired milk needs to be fermented before watering. Expired milk will release lactic acid, which will change soil properties and increase soil acidity. You can put the milk into the bottle, cover it, wait 5-7 days to complete fermentation.
The fermented milk can be used to water the flowers.
Apply to most flowers, such as rose, rose, gardenia, etc.
