Hosta Considering Concordville forms an upright medium clump of 38cm-45cm in height, with a spread of up to 75cm at maturity. It has upright, long dark green leaves on intense purple-red petioles, forming a vase-like shape which highlights the red petioles. Lavender flowers appear during July on scapes of up to 75cm. For those looking for a Hosta with bright red petioles, this could be a suitable option.