Supergreen® Aluminum Sulphate helps acidify soil making growing conditions more desirable for acid-loving plants such as hydrangeas, azaleas, and blueberries etc. Changes the colour of pink hydrangeas to blue. WILL NOT CHANGE WHITE HYDRANGEAS TO PINK OR BLUE.
Weight: 1.1 kg
Test soil pH before use. If soil is alkaline (pH exceeds 7), use Aluminum Sulphate to lower the pH. Apply every 3-4 weeks as needed.
Potted Plants: dissolve 3 ml per 1 L of water (⅗ tsp / 1 qt) and drench soil with the mixture.
Gardens: apply early spring using 500 g per 10 m2 (1 lb / 100 ft2) or 45 – 60 ml (3 – 4 tbsp) per medium sized individual plant. Work into the surface of the soil and water well.
Do not exceed label application rates. Lowering the pH below 5 may cause nutrient deficiencies and possible aluminum toxicity.
DANGER: Causes serious eye damage. KEEP OUT OF REACH OF CHILDREN. Wear eye protection.
IF IN EYES: rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. If medical advice is needed, take product container or label with you.
To avoid damage to plants, do not put undiluted product in direct contact with roots or foliage.