Question
We had a late freeze this year and it almost killed all 3 of my weeping roses.  I live in zone 8 just north of Seattle WA.  I had mulched the plants around the roots well but did not know I needed to cover the top with burlap or something as well.  My roses are now growing from the roots, can I prune them to make a weeping rose again or do I now have another bush rose?

Answer
Your weeping tree was made by grafting a rose onto the base of the roots, then that rose is allowed to grow and as it grows, all side shoots are rubbed off. Then when it reaches the right height, another rose, such as a weeping type, is grafted onto the top. So you have two grafts to protect. The one at the base which can be just covered with 12 inches of soil and the other at the top which can be wrapped in burlap material. It should only be wrapped after the top is pruned  back a little to reduce the size of the top. Also the weather must have turned really cold. Burlap is ideal for your area as it lets the rose breathe. Plastic can make a greenhouse which activates growth or even cause mildew problems as it stays too warm. The suckers coming from the roots will probably just be a rugosa or a wild type of rose. They should all be removed or they will take away the energy needed to make the top grow. If you like let some of the  suckers grow and see what happens when they flower. I really doubt that they will be the same as the top rose.