Purple flowers Common blue violet (Viola papilionacea) Sweet betsy (Trillium cuneatum). AKA toadshade Twisted trillium (Trillium stamineum) Dwarf crested iris (Iris cristata) Glade wild petunia (Ruellia humilus) Smooth ruellia (Ruellia strepens) Heartleaf skullcap (Scutellaria ovata) Jacob’s ladder (Polemonium reptans) Large-flowered skullcap (Scutellaria montana) Sensitive briar (Mimosa nuttallii) Bull thistle (Cirsium vulgare) Narrowleaf vervain (Verbena simplex) Downy lobelia (Lobelia puberola) Heal All (Prunella vulgaris) Share this:TwitterFacebookLike Loading...