Tricyrtis hirta 'Tojen' (Toad Lily)

Clump-forming perennial that features lavender, orchid-like blooms in the summer.  Plants grow to a height of 1'-2' with a spread of 1'-1.5' and prefer full to part shade in evenly most, well-drained soil.  This particular variety is noted for having larger than usual leaves as well as unspotted flowers.