I have been manuring my roses with horse manure with the bedding for the past few years. I have found this to be the very best way of caring for them.

I am wondering if it is OK to bury the canes in manure. For the most part, I try to keep the manure away from the canes, instead mounding it around the plant.

I deviated from this on a few plants, and buried the canes in up to 6 inches of manure. Apparently, the rose didn't mind this treatment at all, and has grown like crazy.

With this in mind, is it a good idea to bury all of my roses like this?

My only concern against this approach would be rotting-out the canes that were buried. For instance, they say never never bury the base of a tree in mulch, because the trunk will rot. Is this a problem with roses as well?