Hosta ‘Sum and Substance’ is a bold, oversized variety renowned for its massive, chartreuse to golden foliage and commanding garden presence. Its huge, broadly rounded leaves have a slightly glossy surface and a gently rippled texture, forming a wide, arching mound that creates instant impact in the landscape. In brighter light, the foliage intensifies to a rich golden hue, making it one of the most luminous large hostas available.