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  • Aluminum Sulphate Soil Acidifier

Aluminum Sulphate Soil Acidifier

  • Product Code: 8669051
  • Availability: In Stock
  • $9.99

Acidifies the soil to encourage the growth of acid-loving plants. Great for blueberries, begonias, dogwood, fuchsia, hollies, hydrangeas, and magnolias. Can be used on edibles. 1.7kg

Potted plants

  • Dissolve 3 ml (3/5 tsp) per litre of water and water plants generously.
  • Repeat every 2-3 weeks. This is an effective rate to change hydrangeas to blue.


  • Rake into soil 5-8 cm deep at a rate of 1 kg (2.2 lb) evenly over 20 m2 (200 sq. ft.) or apply 125 ml (1/2 cup) to medium-sized plants.
  • Ensure you apply to the area surrounding the plant and not against the stem.
  • Reapply every 3-4 weeks.