Landscaping with Canna lilies

Landscaping with Canna lilies

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Landscaping with Canna lilies (Cannaceae). If you are looking for a tropical look in your garden then cannas are the plants to have they thrive in the summer heat and will produce flowers over and over again.  The flowers are large and bright and the foliage is large often mistaken for banana plant and color ranges from dark purple to light lime green.   They love good loamy organic soil and will bloom in full sun.

Most folks know these plants are rhizomes.  Basically, they are plants with numerous horizontal underground root system.  This means they will continue to grow and shoot out new plants from the root system.

Landscaping with Canna lilies
Orange Canna Lily

Landscaping with Canna lilies

Numerous types of Canna lilies in the plant world.  The most common ones are in the photo below.

Top left – Yellow flowering canna lily Jamboree.  Top right – Red flowering Canna Firebird.
Bottom left – Dwarf pink flower canna.  Bottom right Tropicana canna bright orange flower.


A row of Ambassador Canna lily plants

Landscaping with Canna lilies
Cannas planted alongside a cedar fence. Canna Ambassador.

Where to plant cannas?

They should be planted in full sun and a little shade is ok.  You can also plant them in the back of your garden and place smaller perennials in the foreground.  Cannas are winter hardy and can be planted in zones 7-11.  Deadhead expired blooms throughout the growing season.  This will help produce new blooms.

Problems with Canna Lily

The most common problems are snails and slugs they will suck on the new shoots of leaves producing small to large holes on the foliage.  Use a product called Sluggo to kill these garden pests.  You can also place a tin pan and poor a beer next to the plants.  Snail love beer and will fall in the pan and die.  The closer to the plants the better.

Sometimes aphids will attack these plants spray with an insecticidal soap to remove these insects.  Botrytis blight is a fungus disease that will infect Canna lilies.  Usually happens in regions where there is lots of rainfall.  Read more about Insects and Diseases on Plants.

How tall will Canna Lillies grow?

Cannas will grow about 4′ and up to 6′ tall it will depend on the type and where they are placed.

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