Peony tree - help!

I bought three last year and have exactly the same problem. I've read it's all about the planting depth and you have to get it exactly right or they don't like it. I planted as per instructions and still nothing so do i raise them this year and if that doesn't work lower them next? I don't know what to do for the best. Sorry i'm not much help, just thought i'd let you know your not alone. 

I bought a bare root one in March and it has a dozen leafs on it already.I would assume that they spend the first month or so developing feeding roots but they should leaf. I have mine in a large pot, added bonemeal and loose compost and is in a sunny location (when the sun does come out!). Is yours in the ground and if so does it have full sun?

I bought one for my dad last year from crocus. It was bare root and for the first year it was a very sorry thing indeed! But this year its waist high, full of leaves and has at least 3 large flower bulbs on it. He planted it in the ground with loads of compost, in a sunny position and just left it alone. I don't think they like too much interference and they hate being moved

Mine finally flowered last year after 3 years of waiting, but well worth the wait. However due to re- designing the border I unfortunately had to move it, so I will have to wait again to see some flowers but the foliage is coming along fine.

Mine - Molly the Witch - took 4 years to flower (admittedly from a seedling), and promptly had to be moved, 4 years ago - since when it has never looked back, flowers its head off and is now 5ft high.  I've just seen the first flower is on the point of opening, which is pretty good for a very exposed, chilly, windy part of the east of Scotland.  AND there are four or five seedlings at its base ...

As long as the graft is 4 cm or so under the soil surface am sure it will be fine. They spend the first few years putting down roots and getting energy from leaves. Seems to spend the 3rd year onwards flowering!