April 22nd, 2009 Posted in Canna 'Tropicana' | 2 Comments »
The needs of the Canna ‘Tropicana’ are really not much different from those of other cannas. Here are some important tips to consider.
Spacing
The cannas should be planted about 18 inches apart in garden beds. If growing in containers, they can be planted closer together, as they will provide more of an architectural “cluster”. Ideally, the container size should be at least 15″ in diameter to allow the plants to reach their full size potential by the end of the growing season.
Sun
Canna ‘Tropicana’ performs best in full sun – at least 6 hours a day, but can also be grown in light sun or partial shade. If growing indoors, the canna needs about 4 hours of sun per day minimum, and grows best if taken outside during the summer, where it can get more direct sunlight and heat.
Soil and Watering
Canna ‘Tropicana’ can grow in a wide range of soils, but does best in fertile soil. It is more tolerant than most plants to poorly-draining soils. To look its best, the Tropicana canna needs frequent watering during its active growing season.
Fertilizers
In spring, give the canna a time release flowering plant fertilizer with a high potassium value to encourage flower production. Avoid a fertilizer too high in nitrogen – it can produce a canna that is excessively tall and elongated.
Winter Care
Canna ‘Tropicana’ can be stored indoors in Zone 6 or colder climates, and left in the ground in Zone 7 or warmer climates. Click here for more overwintering information.