What is the effect of soil pH on flowers

Soil pH is the hydrogen dissociation concentration index of soil, expressed by pH value, which usually ranges from 1 to 14. When the pH value is between 6.5 and 7.5, it is neutral soil; when it is greater than 7.5, it is alkaline soil; when it is less than 6.5, it is acidic soil. The pH value can be determined by pH test paper. When the test paper is immersed in the soil diluted with water, the test paper turns red into acidic soil and blue into alkaline soil. The acid-base concentration of the soil can be measured by control chromatography.

The pH of the soil directly affects the growth of flowers. Most flowers grow well in neutral or acidic soil, and the nutrients absorbed from the soil are soluble. If the pH is not suitable for flowers, the nutrients in the soil become unabsorbable, resulting in nutritional deficiency in some flowers.

All kinds of flowers have different adaptive ranges to the acidity and alkalinity of the soil, and the acidity and alkalinity of the soil can be changed by applying acidic or alkaline fertilizers.