The aim of this study was to evaluate the effect of soil acidity on the content of aluminium in plants. Studies were conducted in ground pots. The pots contained soil with different pH: I object – pH 6, II object – pH 5, III object – pH 4. The results showed that the content of
aluminium in plants was connected with the soil acidity and Al content in soil. The highest content of aluminium in plants was in objects with pH 4.