Aluminium Sulphate (ALUM) is used to acidify the soil, in cases when the soil is too alkaline or you required a more acidic soil for growing particular crops; such is the case when growing blueberries for example.
ALUM must be added to the soil prior to planting. Check the soil pH after a couple of weeks and then monitor for best planting time depending on your variety.
This 2.5kg economical pack provides value for money.
Aluminium (Al) present as Sulphate 8.7%
Sulfur (S) present as Sulphate 15.5%
Water-soluable
2.5kg of your plant's favourite snacks.
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