For the first time, I noticed how gorgeous some of my perennials are in the Fall. It's not only the trees that are changing colors ...
Oakleaf Hydrangea (Hydrangea quercifolia)
Shrubby cinquefoil (Potentilla frucitosa) -- is getting a purplish sheen to it.
Purple Loosestrife ( Lythrum salicaria L.) (despite the name, not purple in the summer)
Hosta -- I know it's dying, but this one looks pretty all yellow.