H. ‘Coal Black’

Overview

Registered in 2015 from unknown parentage, 'Coal Black' is a medium-sized hosta distinguished by its nearly round, very dark green leaves with slightly rippled margins and a glossy, rubbery texture. The leaf blade measures 5.5 inches (14.0 cm) in both length and width, with eight vein pairs, and is lightly cupped and corrugated.

In the Garden

This cultivar forms a dense, mound-like clump reaching 15 inches (38.1 cm) in height and 20 inches (50.8 cm) in diameter, with a moderate growth rate. It performs best in partial to full shade, typical for hostas, and its dark, shiny foliage provides strong contrast when paired with lighter-leaved perennials such as ferns or heucheras. The compact size makes it suitable for border fronts or small shade gardens, though it is not typically recommended for container culture due to its medium stature.

Care Notes

Provide consistent moisture during the growing season, applying a balanced fertilizer in early spring as new growth emerges. As with most hostas, monitor for slug and deer damage, particularly on the glossy leaves.