Genus Berberis Species thunbergii Cultivar 'Kasia' Sunjoy® Mini Saffron Patent 24817 Common Name Mini Saffron Barberry Zone 4 to 8 Habit compact rounded habit. Slow growth rate. Height 1 to 2 Feet Spread 1 to 2 Feet Foliage bright yellow with some orange on new growth, turning orange-red in the Fall. Deciduous. 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®.