Some varieties are giants reaching up to 6 feet tall. Use these garden giants as temporary screens or hedges. Dwarf forms reaching only 2-3 feet tall are also available. Flower colors on both the giant and dwarf forms include apricot, orange, red, white, pink, yellow, variegated, and speckled. Foliage color also ranges from bright green to variegated with combinations of yellow, maroon, red, bronze, cream, and green.
Cannas thrive in the summer heat and prefer full sun and a rich, moist or wet soil.
They should be fertilized regularly for continuous blooms throughout the summer. Rhizomes are planted horizontally in the ground 4-6 inches deep. Dig the rhizomes after the foliage has been blackened by frost. Store the cannas in slightly moist sand or vermiculite in a well ventilated, cool, frost-free location until planting in spring. The tuberous root of dahlia resembles a sweet potato.