Charley, the ericaceous compost is right for blue hydrangeas.
Thanks. Mum's is pink and I've already got a pink and blue and my soil seems to be fine for both so I'll leave nature to run its course without intervention I think as it seems to be working ok so far.
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Sorry Lily, it's a new one on me.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Thank you Verdun, yes I think its quite a new type. Very pretty flowers tho, hope it is ok and hasn't died because of all this rain.
Will do Verdun
Thanks. Mum's is pink and I've already got a pink and blue and my soil seems to be fine for both so I'll leave nature to run its course without intervention I think as it seems to be working ok so far.
If you wish to enhance red or pink flowers, apply a dressing of ground limestone or chalk at a rate of 75-100g per sq m (2-3oz sq yd) in winter.