Salvia pitcheri 'Grandiflora' (Pitcher's Blue Sage) is a blue-flowered prairie native, tall, lanky and a very showy fall flower. It likes well-drained soil with not too much clay. Sometimes it gets a little iron deficient in alkaline soil, so work in some soil sulfur at planting time. Pinch the tops a few times during June and early July to improve the plants shape and increase the number of flowers. This plant calls for a little extra work, but well worth the effort. Zones 4-9.
Helianthus maximiliana 'Santa Fe' is one of the last perennials to bloom in the fall and certainly one of the showiest. The large golden-yellow flowers are tightly stacked on the top 3-4 feet of the stem and the large deep green symmetrically arranged leaves make an attractive hedge many months before the plant blooms. It likes any soil. Rabbits and deer don't like it, butterflies do. Zones 4-9.
It looks to me that the Pitcher's Blue Sage would be possible to grow here if I could plant it with other plants that could help hold it up. It's bright blue color would certainly add a bright spot, especially when combined with the yellow. I think I would prefer more of a gold than a bright yellow. Maybe I will consider this plant now that I know more about it. Sounds like a challenge, for sure.

