How Tall Do Cannas Grow

Growth Habit: Cannas have a strong upright growth habit. Most varieties grow between 3-5 feet tall, though dwarf types will top out under 2 feet and some can grow to be 8 feet tall. Staking: Though the plants grow to be fairly tall, they have strong, bulky stems, and rarely need to be staked.

Do cannas grow fast?

Cannas are fast growing plants and can reach 6 feet in good conditions. Cannas are usually grown from tubers or root division. In the fall I dig up enough roots to plant in the spring and put them away carefully.

Do cannas multiply?

Like iris plants, canna rhizomes multiply quickly and eventually older rhizomes in the center of the mass can be choked out. Dividing perennial grown cannas every 3-5 years will keep them growing in smaller healthier clumps.