One of the larger Hostas, 'Sum and Substance' is a perennial forming a spreading mound 30" tall & up to 60" wide, of thick, broadly heart-shaped, light green leaves, up to 20 in. long (50 cm), turning chartreuse to gold depending on sun exposure. Shiny above and thinly glaucous below, the lush foliage provides color and texture to the landscape. Dense racemes of bell-shaped, fragrant, pale lavender flowers appear in summer rising on scapes of 40" long. This is supposed to be one of the most slug resistant of all Hostas, due to its waxy leaves. Plant in sun to achieve the best leaf colouration. Certainly an eyecacthing Hosta to have in your garden.