Genus Berberis Species thunbergii Cultivar 'NCBT1' Sunjoy® Mini Maroon Patent 30330 Common Name Mini Maroon Barberry Zone 4 to 8 Habit compact rounded habit. Slow growth rate. Height 2 to 3 Feet Spread 2 to 3 Feet Foliage deep purple, red Flower Insignificant Culture Full sun Categories: Deciduous Shrub Proven Winners® Color Choice® 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 Photo courtesy of Proven Winners®.