Gardenia can be washed with rice water. Moreover, it's good to use it for watering. It is worth mentioning that there are many kinds of nutrition in it. Nitrogen, phosphorus, potassium and other elements are rich. Therefore, appropriate use of the plant is beneficial
It is not allowed to pour rice washing water directly. If it is poured directly, it will not play a good role, but may cause the plant to lose leaves. The right way to do it is: first, let it stand and ferment; after fermentation, it should be diluted before use. When pouring, pour along the edge of the basin, don't get on the blade.
Although the rice washing water is good, it can't be too much, about four grams per time. Because the water after rice washing is alkaline. But plants like acid soil. Therefore, if the amount is too much, it will be counterproductive and harmful to the plants. Moreover, it can't be too many times, once a month. Otherwise, often use rice water, will breed mosquitoes, gardenia is not good
(1) generally speaking, rainwater is the best. However, it is not to let the plant rain, because it is afraid of waterlogging. Better collect the rain
(2) tap water is OK, but only after standing. Besides, the water temperature should be about the same as indoor
(3) citric acid or vinegar can also be added to the water to make the soil acid.