Liatris aka blazing star are native plants that attract pollinators. Their tall flower spikes bloom in August, adding visual ...

Spike rush (Eleocharis palustris ... typically growing 3 to 4 feet tall. This rain garden plant is hardy in Zones 3–6.

Deep green foliage set off the slender white flower spikes. This plant wards off some insects ... making it an excellent addition to a woodland garden. US Zones 5–9. Hosta is a low-growing ...

Technically lead plant is a shrub, but never gets larger than 3 feet, so it can act as a tall 30-inch perennial. Once a lead plant is established, it is long-lived, and heat and drought tolerant.