How to improve flower soil quality? Try these practical tips

Soil in northern regions is generally alkaline, which does not meet the requirements of southern acid-loving plants such as rhododendrons, camellias, gardenias, and jasmine. Here are several small methods for improving soil quality:

1. Alum method

Alum, also called white alum, is dissolved in water to make a 1-2% solution and applied to loose, humus-rich, fertile soil. Watering with it about once every half month is beneficial to the growth of plants such as camellias and rhododendrons.

2. Ferrous sulfate method

Ferrous sulfate, commonly known as green vitriol, is used as a 0.2-0.5% ferrous sulfate solution, watered about once every half month. It is especially effective for acid-loving flowering plants, such as gardenias with yellow leaves, and has a clear effect on southern acid-loving flowering plants.

3. Sulfur powder method

Sulfur is in blocky crystals and can be ground into fine powder by yourself. When using, mix it evenly with the potting soil. Generally, add 1-2 grams to the soil in a 30 cm diameter clay pot. Sulfur powder is difficult to dissolve in water, so its effect is released slowly and lasts a long time.

4. Orange peel method

After fresh orange peel is soaked in water and decomposed, its pH value is below 5 and it has fertilizing effect. When using, dilute it with water and test its pH value until it is appropriate.