Basil Tuscan is a dwarf Large Leaf Italian type basil. It can grow to be 18 to 20 inches tall, and 15 to 18 inches wide. The dark green, shiny leaves grow up to be 3 inches long on a compact, erect plant that is slow to bolt. Its typical small terminal bunches of white flowers will bud out later in summer; pinch the new buds away if you want to harvest more of its leaves.