Flower Power Berberis linearifolia ‘Orange King’ common name: barberry Evergreen shrub. This is my favourite Berberis, with its thin, glossy, dark green leaves and deep orange flowers that open from red buds in late spring. It is totally hardy, and providing the ground isn’t waterlogged it is not fussy regarding soil type. Sold as container-grown plants, and may be planted throughout the year. Height and spread: 2.5 metres. 78