The most important point in hydrangea care is watering. During warm, dry weather, hydrangeas need to be watered frequently. Potted hydrangeas should never be let to dry out completely.
If you intend to influence the colour of your hydrangeas, you will need to pay particular attention to the soil conditions. In acid soils, hydrangeas develop blue blossoms, whereas in alkaline soils they develop pink ones.
In spring, it’s time for pruning. Old flowers are cut off and if you want to thin out your plant, remove some of the older stems. Be careful not cut back your hydrangeas too much as this can have a negative effect on flowering.
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