A sight to behold in every garden, Dogwood shrubs will gift your garden with beautiful displays of foliage and flowers throughout the seasons. While many gardeners appreciate the showy flowers that appear in spring, Dogwood shrubs are arguably best known for their red-hued stems that provide wonderful winter interest. Many do wonder why this shrub is called Dogwood, and the reason is yet to be decided. Some believe it is due to the berries being considered unsuitable for dogs, and others believe it derives from the Celtic word 'dag', meaning 'pointed tool'