Canna Seeds - Tropical Series98 112 days. Tropical Series seeds promise exotic, early blooming, and easy to grow canna plants for especially hot, humid gardens across North America. Tropical Series seeds mature into robust 30 36" tall canna ideal for indoor planters or as a neat trimming to the flower bed. Tropical Series canna seeds boast one of the most dense and unique blooming stalks in any garden and are available in a variety of brilliant colors. Tropical Series canna is