Basil Christmas : "Ocimum basilicum" Christmas basil has extra large, showy, purple blooms set off by deep green foliage with a nice, fruity aroma. Not only great for the kitchen, but would also make a great garden border or bouquet. This basil was created by cross-breeding Thai and Genovese. Plant grows 16 to 20" tall and is a annual. Christmas Basil is a great addition to any kitchen garden.