You may also consider
-
Siberian Peashrub
Hardy, Drought Tolerant, Yellow Flowers, 15-20', Zone 2 -
Helmond Pillar Japanese Barberry
Red-Purple Foliage, Upright, 4-5', Zone 4 -
Golden Nugget Dwarf Barberry
Dwarf Barberry, Golden Foliage, Contrast Planting, 12", Zone 4 -
Orange Rocket Barberry
Orange-Red Summer, Red Fall, Can be Hedge Plant, 3-4', Zone 4


