How Often Apply Aluminum Sulfate to Hydrangeas
On the frequency of alum application to hydrangea
Anyone who plants hydrangea wants its color to change, so he often accompanies it with alum. However, the frequency of alum application is related to the prosperity and withering of flowers, so you should not be careless.
At the beginning, observe the nature of the soil. If the soil is alkaline and wants to adjust the acid, it is appropriate to apply alum liquid thinly at the beginning of spring. Apply once every ten days, about three times, to make the soil gradually sour, so as to suit the nature of hydrangea.
And if the flowers want to bloom, apply alum slowly. Apply once a month. If you apply it too frequently, you may hurt its roots and cause the flowers to wither early.
After the flowers wither, you should also pay attention Depending on the acidity and alkalinity of the soil, apply it once every half month, or once every 20 days, with the acidity of the solid soil, to prepare for the flowers of the coming year.
In short, if alum is applied to hydrangea, it is appropriate to be diligent in spring, slow in flowering, and moderate in autumn. Observe the soil conditions, observe the flowers, and do it at the right time, the hydrangea flowers will be fresh in color and lush year after year.
Anyone who plants hydrangea wants its color to change, so he often accompanies it with alum. However, the frequency of alum application is related to the prosperity and withering of flowers, so you should not be careless.
At the beginning, observe the nature of the soil. If the soil is alkaline and wants to adjust the acid, it is appropriate to apply alum liquid thinly at the beginning of spring. Apply once every ten days, about three times, to make the soil gradually sour, so as to suit the nature of hydrangea.
And if the flowers want to bloom, apply alum slowly. Apply once a month. If you apply it too frequently, you may hurt its roots and cause the flowers to wither early.
After the flowers wither, you should also pay attention Depending on the acidity and alkalinity of the soil, apply it once every half month, or once every 20 days, with the acidity of the solid soil, to prepare for the flowers of the coming year.
In short, if alum is applied to hydrangea, it is appropriate to be diligent in spring, slow in flowering, and moderate in autumn. Observe the soil conditions, observe the flowers, and do it at the right time, the hydrangea flowers will be fresh in color and lush year after year.

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