It is growing in poorish soil next to another hydrangea which seems to be ok. I am feeding it with all purpose miracle grow fertiliser every few weeks. It has a white flower.
You need to add more organic matter - lots of it. Well rotted manure is more beneficial than just compost, as it helps retain moisture on poorer soils, but anything will help. If it's next to another hydrangea, that one is probably taking up most of the moisture and available nutrients. Constantly feeding with a synthetic food isn't helpful either if a plant is struggling. That's ok now and again if the plant is generally healthy, although hydrangeas really don't need lots of extra food if they're in good soil conditions with plenty of moisture
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Constantly feeding with a synthetic food isn't helpful either if a plant is struggling. That's ok now and again if the plant is generally healthy, although hydrangeas really don't need lots of extra food if they're in good soil conditions with plenty of moisture
I live in west central Scotland - not where that photo is...