purple flowers in the summer garden. bush ageratum conyzoides. small ageratum flowers

perennial mexican beautiful paintbrush background houstoniana blooming herbaceous flossflower wendlandii carelia floss conyzoides bloom petal summer ornamental houstonianum flora bush pollen small fresh circle blanket autumn garden purple tongolensis plant blue astringent foliage flower decorative leaf gardener remedy alternate violet inflorescence nature natural lance green blossom aster floral ageratum compositae