As we said before, it is not recommended to water flowers directly with tea, because tea contains various alkaloids, which will inhibit the absorption of organic nutrients by plants in the soil, and the organic components in the soil may be destroyed by these alkaloids, reducing the fertility of the soil. In addition, tea leaves accumulate on the surface of potted soil for a long time, which is not easy to decompose and it is difficult to loosen the soil in time. In the long run, it will affect the ventilation of potted soil and lead to hypoxia of potted flowers. So it is not good to water the flowers directly with the remaining tea leaves.
In fact, fermented tea can be used to water flowers. We can put the remaining tea leaves in a sealed jar and add vinegar and orange peel. This can change the pH of tea, that is to say, tea has been fully fermented and matured, and fermented tea is a good fertilizer. The remaining tea leaves can also be sealed and fermented with rice washing water to ripen. When it is used, it is mixed with clear water to form a certain proportion of fertilizer water, which is applied to flowers every few days, which is very beneficial to the growth of acid-loving flowers.
One more thing, overnight tea can actually water the flowers. After a night of fermentation, the water quality becomes a little sour, so it is very good to water acidic flowers and plants with it. But it is best not to dump it often, but to use the opportunity of digging to bury the dried tea in the soil regularly, which can improve the soil quality and increase the loose water permeability of the soil.
In addition, it should be noted that acidic flowers are suitable for watering tea residual water, such as camellia, Hongfeng, Prynne, Milan, Gardenia, Zhu Lan, Begonia, potted orange, cherry blossom, American ginseng and Podocarpus. But it is not suitable for plants like alkaline soil, such as roses, chrysanthemums, cacti and arborvitae.