Siberian Dogwood Another great variety of the red-barked Dogwoods. Cornus alba Siberica produces small flowers in early Summer followed by clusters of white berries and is less vigorous than other red Dogwoods. Good autumn colour. When planted near evergreens in the open, the Winter sun can show off the red stems beautifully. Flowers are good for bees and insects.Site: Tolerates inland exposedSoil: Well draining, moist soils, tolerant of wet soilsPosition: Full sun, partial shade, tolerant of shadeSeason of Interest: Autumn foliage, white berries and red stems in WinterHardiness: Fully hardyHeight: up to 6ft (2m) Spread: up to 6ft (2m)