1. If the rotten root of the plant is not very serious, stop watering immediately, move the plant to the ventilated outdoor, turn the root out, disinfect the root, and then change the pot for soil.
2. If the rotten root is serious, clean the rotten place with a sharp knife, spray some bactericide, or soak it in the disinfectant solution for a while, then take it out and put it in the air circulation place for air drying.
1. The plant should be watered thoroughly at one time. Too much water and poor drainage will easily lead to rotten roots.
2. The plant can be fertilized and watered once a month or so after flowering, which will promote the root system renovation and the growth of new bulbs. When entering dormancy period, we should control water and fertilizer for plants.
3. Change the pot and soil regularly. Check the root system of the plant every other year. Change the pot and soil. Pay attention to the loose and permeable flower soil.