What to do if the soil of gardenia becomes alkaline
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What to do if the soil of gardenia becomes alkaline
First, cut lemons into slices and soak them in clean water, then expose them to the sun to ferment, or directly purchase lemon acid, dilute it with water, and use it. Lastly, I will introduce a quick and effective method, which is to mix the soil with pine needle mulch.
Gardenias have lush branches and leaves, evergreen foliage, and their flowers have a captivating fragrance. They are important ornamental plants for gardens. Moreover, the flowers can be used as tea spices, and the fruits can reduce inflammation and clear heat. They are excellent aromatic flowers. However, soil alkalization can lead to yellow leaves, and if left unchecked, gardenias will wither.
So how do you determine if the soil is alkaline? The simplest method is to use pH test strips and follow the instructions provided. Afterward, compare the results with the standard colorimetric chart to determine the soil's pH level. If a problem is detected, it is important to take action promptly.
1. Apply more organic fertilizers
Regularly use sulfate iron, potassium dihydrogen phosphate, etc. For example, using 150g of sulfate iron powder in one square meter of soil can reduce the pH value by 0.5~1.0 units. If the soil is particularly heavy, you can increase the amount by 1/3.
2. Soak flowers with water and fruit peels
First, cut lemons into slices and soak them in clean water, then expose them to the sun to ferment, or directly purchase lemon acid, dilute it with water, and use it.
3. Sulfur powder
When preparing the soil, mix in sulfur powder. Generally, 1-2g of sulfur powder per liter of soil is sufficient. This method lasts a long time, and the insecticidal properties of sulfur powder can also protect succulents.
4. Pine needles
The above information introduced about what to do if the soil of gardenia becomes alkaline is hoped to be helpful to you!