Ratibida pinnata This pretty native is less commonly seen in the naturalized garden but provides a striking habit - the plants are delicate and tall and move with any touch of a breeze. The flowers are long lasting and heavily produced through late summer. The flowers feed butterflies and bees, the foliage is important for many caterpillar species, and the seed heads feed finches. 2-3 feet. Full sun. Perennial. 100+ seeds.