When we moved into our home 17 years ago I planted a 5 ft tall standard rose, that produced beautiful dinner-plate sized deep red roses. After about 5 years it threw up a "daughter" stem, which grew up alongside the original effectively making it all one plant.
This year, the buds are forming and the rose colour is visible. One of the stems is now producing red roses, the other has changed to white.
Anyone know why this has happened?
Experience; is something you gain, just after you needed it most.
When faced with two choices, simply toss a coin. It works not because it settles the question for you. But because in that brief moment while the coin is in the air. You suddenly know what you are hoping for.
A lot of plants are grown on different stems to the flowering part. That is how growers produce new colours or offer certain features. The root stock has certain characteristics like limiting height, drought resistance etc. That is why trees are classified with a root stock number and you can buy dwarf fruit trees when they normally grow to twenty or thirty foot.
So likely the rose originated from a white rose root stock and a coloured rose grafted onto it.