Acid-loving plants like hydrangeas benefit from ericaceous compost that raises the acidity of the soil and helps to alter the bloom color of hydrangeas. If the soil in your garden or planters is otherwise alkaline, this special compost is a quick way to change that.
What is the best compost for hydrangeas in pots?
Pot grown hydrangeas can be planted at any time of year, in the open ground or in pots and containers using Vitax John Innes compost. Choose nice big pots that will allow the plants to grow happily for several years.
Do hydrangea plants need ericaceous soil?
There is no variety of hydrangea that absolutely needs ericaceous compost, as they can get along quite well in almost any conditions, but it does bring with it some benefits. Now, this is something you only get with the mophead varieties, those that start out with some shade of pink or blue.