Not sure what that means, your question, really. You can usually see a graft on plants which are grafted - it'll be a lumpier area at the base of the topgrowth on the top of the stem if its a standard, or a lumpier area at the base of a plant.

I would not have thought that tree peonies were grafted, are they? They put up several stems from the root and I would have thought that any graft would, very quickly, revert to the original root stock.

Thanks

I had the same instruction on mine...and was equally baffled! However, I planted it as instructed...graft under soil surface and it is now in leaf and growing well..I am hoping it wil flower this year.... as the guarantee says!LOL

I have an old label off my Tree Peony which says the same. I do check every now and again that the union is below soil level as chucking water at it can uncover it. It definately does better with the union covered.