We have a rose bush with white flowers. Sprouts from the roots produce red flowers. Expain the genetics?

Many rose and fruit trees are done by grafting the wantd type on a strong root. Occasionally the root comes on strong or the whole plant goes wild. The red is probably a smaller single flower and the white a larger fuller flower. I have several roses that were good ones that have gone wild.

We have a rose bush with white flowers. Sprouts from the roots produce red flowers. Expain the genetics?
Your rose is a graft or scion selected for its white flowers .





The sturdy root stock is of red rose .





You have allowed shoots to develop from the root stock. these are called suckers. ( Generally it is not done . The branches from the root stock or suckers are nipped in bud to allow the graft or the scion to grow healthy).





See links to under stand the terms -





http://www.extension.umn.edu/yardandgard...





http://asgap.org.au/gif/graft1a.gif





http://generalhorticulture.tamu.edu/lect...





http://images.lowes.com/general/r/roseca...