Cornus alba 39sibirica39 is grown for its fiery red stems which bring colour to winter gardens for most of the year 39sibirica39 provides a leafy green backdrop for more colourful summer45flowering plants its small white flowers form a pretty display in summer and are loved by pollinating insects but as the summer borders fade this vibrant dogwood takes centre stage as its foliage turns to shades of pink and orange it then falls revealing a dense framework of upright stem