They are square but come to a point and appear to be in sections as the blooms start at the bottom and bloom individually all the way up to the top. They are a lovely lavender-blue color. They bloom repeatedly spring through fall and some have found it to bloom all year. It will take full sun, but, a little shade where it gets really hot would be great. It is not a large plant, 18” tall and 24” wide, and will look great in a pot or in that little area that you just don’t know what to put there.