When the phenomenon of "catching an arrow" is discovered, it is necessary to find out the reasons and take targeted measures. ① If it is caused by improper temperature, move the flowerpot to an air-conditioned room in time and keep the room temperature at about 20℃. (2) If the arrow is hit by lack of nutrition and water, when the arrow appears, spray 0.3% potassium dihydrogen phosphate solution on the leaves to supplement the deficiency of phosphorus and potassium fertilizer. Water magnetized water 1 time, once every 3~5 days, but the amount of water should not be too much each time, and the temperature of water should be slightly higher than the soil temperature. (3) If an arrow is hit by rotten roots, knock Clivia out of the pot, gently peel off the soil, rinse with clear water, cut off the rotten roots, then soak the roots in 0. 1% potassium permanganate solution for disinfection, take them out, dip them in a small amount of sulfur powder or plant ash, dry them in the shade, put in new soil, and put them on the pot again. At this time, water should be properly controlled, kept in a semi-shady place, and transferred to normal fertilizer and water management after new roots germinate.