Genus Ilex Species crenata Cultivar 'Rocky Creek' Common Name 'Rocky Creek' Japanese Holly Zone 6 to 9 Habit Somewhat rounded habit, with contorted branches. Slow growth rate. Height 5 to 6 Feet Spread 5 to 6 Feet Foliage dark green foliage. Evergreen., Small Flower Insignificant. Culture Full sun to partial shade. Category: Holly Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window) Description The twisted and contorted habit of this holly make it an interesting addition to the landscape.