I have a climbing vine that I planted 2 or 3 years ago. It gets to be 8 to 10 feet tall. Last year it produced blue morning glory flowers, but this year it is producing purple clematis flowers. Why? Is it a hybrid? Thanks.
Certified GKH Gardening Expert
Even if your vine is a hybrid, it would not revert to a different species.
Perhaps you have 2 vines planted in the location.