1. Gardenia is an acidic plant, and acidic soil is more suitable for its growth. Therefore, when raising it, the PH value of the soil should be tested frequently, and the value greater than 7 is alkaline. If the soil is alkalized, measures should be taken, such as mixing rotten leaf fertilizer with the soil or dropping a few drops of vinegar, which can change the alkaline soil into acidic soil.

2. Gardenia is a semi-shade plant, which needs some light. It is necessary to ensure six hours of astigmatism exposure every day to avoid direct glare. Direct sunlight will cause its leaves to turn yellow and its buds to fall off, so be sure to pay attention.

3. The temperature suitable for gardenia growth is above 15 degrees and below 25 degrees. When the temperature is high, move gardenia to a cool place, or spray water to cool it down. When it is low, pay attention to help it keep warm. If it is potted, move it to a warm place. If it is planted outdoors, cover it with straw and wrap it with plastic wrap to help gardenia keep out the cold.

4. Gardenia prefers wet to waterlogging, so water it more, but the amount of water should not be too much. It is best to water it two or three times a week. Every time you water it, you can't let water accumulate in the basin. Its root system is fleshy, and water accumulation will affect the root's absorption of nutrients and growth. In addition to watering, spray water on the branches and leaves of gardenia every morning and evening. The finer the water drops, the better, which is easy to absorb.