Hydrangeas: If your blue Hydrangeas turn out pink..., 1 by wallaby1

wallaby1 wrote:
Yes, it is acidic but I don't think strongly so. I also mulch with lots of leafy compost and that is supposed to make it more alkaline and shouldn't be done too often.. It must be 5 years since I mulched the bed with Mariesii, it's due another as the weeds have started to get a hold again, it keeps them and moss down. Mariesii is a blue variety anyway, I do have a pink mophead one in the same bed and it remains a deep pink with no hint of blue.

You can see it behind the hosta bed, with a H quadricolor next to it. That is a lacecap with white tinged with lavender flowers and white, green, greyish green and yellow leaves.
Mariesii is behingd the pink on the other side.

They look a bit purplish in the pic but don't look like that in reality.