Hosta Cooltini forms a compact mound of 25cm-30cm in height and can spread up to 60cm at maturity. The plant features medium blue-green foliage that transitions to dark green by August. Its leaves are slightly rippled, mildly corrugated, ovate with a thin glaucous bloom on top, and have red dotted petioles. This small dark green mound of twisted and contorted leaves was developed by Bob Solberg. Pale purple, tubular flowers bloom on scapes up to 60cm tall from mid-August into September. It is one of the larger 'Tinis'. Hosta Cooltini is believed to be resistant to slugs and partially tolerant of sun exposure.