Thuja Cypress Thuja 'Smaragd' - Hardy plantAn evergreen plant that is easy to care for! That's the white cedar 'Smaragd' (Thuja). This green conifer looks great on a patio and is as hardy as they come. The conifer is trimmed into shape and stays green all year round. You must prune the conifer in June or July so that the plant keeps its shape. The conifer does well in the shade or the sun. This makes it easier to find a nice spot for the plant in the garden or on the patio. Water the conifer