Cornus sericea (Red Osier Dogwood) This deciduous plant offers four seasons of interest with bright red bark in winter, clusters of creamy white flowers in spring, tiny white berries (a songbird favorite) amongst a thicket of greenery in summer and purplish leaves in autumn. Height 6-12′. Grows in wet soils and is great for riparian areas. Stems can be used to make a nice red dye. Hardy to zone 3.