Do azaleas grown in the north need to be sprayed with vinegar? When is the best time to spray vinegar on azaleas?

Azalea is another name for azalea. We all know that azalea likes acidic soil. It will grow poorly and even have yellow leaves in soil with high pH value. In order to increase the acidity of the soil, we often use ferrous sulfate or edible vinegar to dilute and apply it. Let's see how to do it!

Do azaleas grown in the north need to be sprayed with vinegar?

When growing rhododendrons in the north, it is necessary to frequently supplement with ferrous sulfate or edible vinegar. Ferrous sulfate needs to be diluted before watering, and vinegar also needs to be diluted 10-20 times before use. The purpose of watering is to lower the pH of the soil, while spraying the leaves of rhododendrons cannot improve the acidity and alkalinity of the soil. If you want to increase the acidity of the soil, you cannot spray the leaves, and you must add water for watering. If you want to increase the disease resistance of rhododendrons, you can spray the leaves, because edible vinegar contains acetic acid, which has a certain bactericidal effect. In addition, edible vinegar is also rich in nutrients.

When is the best time to spray vinegar on azalea

Although azalea likes acidic soil, if it is sprayed too frequently, it will be extremely detrimental to the growth of the plant, so I suggest that you spray it once every ten days or so. It is best to avoid spraying at noon, because the light at noon is relatively strong. It is best to choose the morning or evening.

How to choose azalea vinegar

You can spray the leaves of azalea with edible vinegar, which has a certain disease prevention and resistance effect. If you need to improve the acidity of the soil, you still need to irrigate it. When using edible vinegar, first, you must choose one that does not contain sodium ions, and second, you must dilute it with water more than 10 times before use. It is best to use PH test paper to test the acidity and alkalinity of the soil.

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Spraying azalea with vinegar can make the leaves of azalea turn darker green, but when adding water, it is best to use boiled water to mix the vinegar. Because tap water has a high alkalinity, if tap water is used to mix the vinegar, the effect will not be so obvious, so it is best to use boiled water to mix the vinegar.