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.

Do all hydrangeas need ericaceous compost?

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.

What type of soil is best for hydrangeas?

Hydrangeas aren't especially picky about soil. Like most plants, they tend to grow best in soils that drain well. Heavy clay soils that retain water can quickly kill hydrangeas. Instead, aim to give hydrangeas soil that's fertile and well-drained.