Now you can grow your own calorie-free, carbohydrate-free, low-glycemic sweetener at home! Stevia is up to 300 times as sweet as sugar, so a little goes a long way. Some say the leaves have a slight, pleasant, anise aftertaste. The bushy, 18"–30" tall plants can be grown in 10"–12" diameter containers. Leaves are sweetest just before the plant flowers in late summer to fall.