If you are looking for a plant that has winter interest cornus alba 39kesselringii39 is a superb choice it is a dogwood shrub that has rich purple woody stems during the coldest part of the year planted alongside other dogwoods with bark of various shades of red and purple creates a striking and unusual winter garden featurethe plant has green leaves that turn red in autumn and flowers in spring the blooms are cream coloured and will help attract bees and butterflies to your garden