Prepare some fish intestines and wash them in clean water. Then put it in a plastic bottle, and pour some water into the bottle, then tighten the cap, and put the bottle in a warm and sunny place. After 15-30 days, it has been fermented. At this time, pour out the supernatant from the upper layer and dilute it with clear water, then it can be used as fertilizer for rose flowers.
Besides fish intestines, the whole fish can also be used as fertilizer. Dig a big hole in the land far away from the rose root system, bury the whole dead fish in it, and then fill the hole. This can also effectively increase the fertility of the soil and help the rose to grow. However, it should be noted that this way of fertilization is only applicable to the plants planted in the ground. If it is a potted plant, it cannot be fertilized in this way.
Prepare some broken eggs and cook them in the pot. Then break them, take out the yolk, and crush them with a spoon or hand. After that, dig some small holes in the flower soil around the rose, bury the egg yolk in them, and then bury the holes. In this way, the yolk can provide nutrients for the plant and help it bloom.