What flowers need to be watered with ferrous sulfate? Can you elaborate on it?

Ferrous sulfate is generally suitable for flowers and trees that like acidic soil, especially potted camellia, rhododendron and gardenia. Because the acidity of the basin soil is weakened and the leaves turn yellow or even sharp, ferrous sulfate can be applied. Ferrous sulfate is an inorganic chemical fertilizer, which can promote the chlorophyll synthesis of flowers and trees. However, it should not be applied frequently, and it can only be applied four or five times a year. Frequent application will affect root growth.

Ferrous sulfate can neutralize alkalinity and improve acidity. Therefore, flowers, especially azalea, jasmine, gardenia, camellia, orange and Cycas, must be watered with ferrous sulfate to grow well.

Adding a small amount of ferrous sulfate can improve the acidity of basin soil and meet the needs of plant growth. Ferrous sulfate regulates soil pH, promotes chlorophyll formation (also called iron fertilizer), and can prevent flowers and trees from yellowing due to iron deficiency. It is an indispensable element for acid-loving flowers and trees, especially cycads.