1、 Low temperature

If the temperature of gardenia is lower than 5 ℃ in winter, it is easy to freeze to death

Solution: if the exposed temperature is lower than 5 ℃, move into the room in time for winter. If the indoor temperature is low, you can find a bag to cover the flowers and open it at noon every day for ventilation

2、 More watering

Reason: the temperature is low in winter and the water in the basin soil evaporates slowly. If water is supplied according to the watering frequency between, it is easy to cause soil ponding and root rot, which is manifested in the yellowing of plant leaves

Solution: if the temperature is low in winter, it is necessary to properly control the water, open the watering interval, touch the soil surface and dry it, carry the basin to lighten the soil and then water it, or insert a bamboo stick in the basin, pull it out to see if the bamboo is dry and then water it

3、 Lack of light

Reason: there is less light in winter and the light intensity is not high. If gardenia is not exposed to the sun for a long time, lack of light will lead to yellowing of plant leaves

Solution: the light in winter is warm and soft. We must move the potted plants to the sunny place and accumulate more nutrients in the sun. If the indoor lighting is insufficient, fill lights can be set up to brighten the plants

4、 Random fertilization

Reason: the temperature is low in winter, so do not apply fertilizer, otherwise the plant can not absorb it, and it is easy to cause fertilizer injury and yellow leaves

Solution: do not apply fertilizer throughout the winter, let Gardenia survive the winter safely, and apply alum fertilizer and water after the flowers bloom in the coming spring to supplement nutrients for the plant and prevent iron deficient yellow leaves of Gardenia