Superphosphate has very high phosphorus content. This makes it ideal for encouraging strong root development. It also helps to move sugars and proteins around the plant so that fruits and vegetables ripen properly.
When to use:
Apply every 4-6 weeks during the growing season from March to the end of August. For best results Superphosphate should be worked into the soil. During dry weather water before and after application.
Handy application tip - One handful of Superphosphate is approximately 35grams (1¼ oz).