I am growing Forever Pink but it hasn't bloomed yet. I can say "Yes, there are hydrangeas that are reliably pink in this area." Pia is one of them. It is a pink dwarf and I am positive there are others.

I belive the pink depends on alkaline soil. Most soil here is acidic. I had one pink hydrangea which reverted to blue the second year, even with soil ammendments to keep it pink. I'm not sure if that would be the case with every variety.

'Pia" is an exception and will stay pink regardless of the sol Ph.

Sorry eddie, my 'Pia' has purple blooms! They were pink the first year after I planted it, but every year since, they are a very dark purple. So are all of the red flowered ones, like 'Glowing Embers'
Rb

The one I bought also said it would stay pink. I put the lime on it and it became washed out. I put nothing on it this year and it is a nice blue. Better than washed out.

I did splurge on a Europe hydrangea from Hydrangeasplus.com. It was expensive and did not bloom for the first two years, but is now a spectacular purple/blue. It's suffering a bit this year due to drought conditions, but it will be back.

I've had 'Pink Elf' for about 4 years now and it's always bloomed pink.