One of the good Meadow Rues (there are bad ones, several of which are playing key roles in our compost pile) with nice small rounded leaflets and attractive pinky lavender flowers in cumulonimbus heads.  Great midsummer textural color along with the often undervalued design elements of narrow, vertical and airy.

Dwarf Meadow Rue.  One of the best of the smaller Thalictrums, this slowly creeps to create a small mat of attractive foliage topped by violet blue flowers.  Yet another nice plant from Japan.  Half sun is ideal but will take full sun with more moisture.