Miscanthus floridulus
Robust foliage 8-10' tall with silky reddish tassels 1-2' above foliage in October. The foliage becomes a solid wall of green that looks like falling water. This is a warm season grass that forms a clump about 6' wide.
Full sun to part shade in average to moist soil. Adaptable but may flop in too much shade. Plant in permanent position.
Giant Chinese Silver Grass