1. lighting: it likes light, but it has just bought it and has not adapted to the new environment. It needs to be maintained in a place with soft light first, and then gradually give it enough light. It should be noted that it cannot be directly placed under strong light to avoid burning the blade. Oxalis purpurea has strong phototaxis. When curing, it should be placed on the balcony and windowsill, and the position of plants should be changed frequently to make them receive light evenly around.

2. Temperature: It likes a warm environment. When it is just bought back, it can be maintained in the environment of 16℃-22℃, which will make it better adapt to the new growth environment. It is not cold-tolerant. When the temperature is lower than 10℃, the growth stops, and the leaves wither at 0℃. Therefore, attention should be paid to the temperature in winter maintenance, and it is best to keep it above 5℃.

3. Watering: It likes wet environment. Water should adhere to the principle of "no water, no water". Water can be poured once a day in spring and autumn to keep the soil moist and free of water. When the temperature is above 30℃ in summer, plants are in semi-dormancy and dormant state, so watering must be controlled. You can spray some water around properly and pay attention to ventilation. When the temperature drops below 10℃ in winter, the water should be dry but not wet to prevent bulbs from rotting.

4. Fertilization: It likes to fertilize, but it doesn't need fertilization when it is just bought back. When it returns to normal growth, it can resume fertilization. Under normal circumstances, NPK compound fertilizer can be applied once a month, and the concentration should be paid attention to. Too high concentration will burn bulbs and affect growth. Don't splash liquid fertilizer on the leaves when applying fertilizer, otherwise it will easily cause leaf diseases. In summer, it is dormant in July and August, so it is necessary to stop fertilization.