The ones that bloom here are shorter and tend a little more toward purple than the Quaker Lady bluets that grew around my home when I was a youngster. I like the Quaker Ladies best. Bluets often have 4 petals, but my sister informed me that some have 5. We thrilled to finding a five-petaled bluet like finding a four-leaf clover. I noticed a bluet with 5 petals right by my sidewalk yesterday.