The Yates Hydrangea Pinking Liquid Lime & Dolomite 500ml works well to improve the colour of your pink Hydrangeas. Easy to use with a watering can, this solution is an effective blend of top quality ingredients that works with the pH of the soil by increasing its pH to colour hydrangea flowers. It helps add nutrition to the soil and change the colour of purple and blue flowers. Enriched with Magnesium, this product will help the appearance of foliage as well.
 
Consists of:
Calcium (Ca) as calcium carbonate 41.5% w/v
Magnesium (Mg) as magnesium carbonate 6% w/v