Miscanthus sinensis

What is all the green foilage at this time of year, It's Nov 1 2009.

First, your zone is at or near the bottom of its hardiness range, and I wouldn't expect it to look like much in June. Miscanthus in general is a late starter, and should be cut back to nearly the crown before it starts regrowth in earnest. Dwarf cultivars, like 'Little Kitten,' are very susceptible to winter kill, so I would mulch the clumps before snow cover. Lay some pine boughs over them, and fill with whole leaves, and be sure to completely remove the mulch in spring.

The green foliage showing in your photos looks like something else has either seeded or crept into the clumps. It doesn't look like Miscanthus foliage.

Rory