|I have seen the most beautiful blue and purple flowers while vacationing on the west coast of Michigan. Would you be able to help me identify them. I think they were perennials but can not be sure. The were about 3 feet tall, and came in different shades of blue and purple, from light to dark. The leaves were medium to dark green. The flower itself was about 6 inches in diameter and was shaped almost like a ball. I have seen these in white flowers only but i dont even know the name of them, the white ones i have seen are more like a bush, so i dont even know if it is the same plant. I live in southeastern Michigan and would love to have these in my yard, would they grow here?