Galium Species, Catchweed Bedstraw, Cleavers, Goose Grass, Sticky Willy (Galium aparine)

Cincinnati, OH

Hello, I am new to this community. Sorry to post this question here, but I couldn't find an option to start a new thread of my own.

I have cannas that just will not bloom. Thy grow tall and healthy but will not flower. I dig them up each fall and reset in various places to experiment with lighting and soil, but no luck. I've had them at least five years, and only two years did I have any blooms. And then, it was just one plant and only one set of flowers. I am not sure of the variety, but, if it helps, they have the reddish/maroon leaves.

Castro Valley, CA

My initial thoughts were too little sun or too much nitrogen in the soil that promotes lush leaves, not blooms.

I looked and found this article which mentioned a better reason I think.
"Ideally, canna lilies that are planted each spring as annuals should have adequate time to produce plenty of blooms in a growing season. When grown like this, as annuals, a canna lily not blooming could be a sign that the rhizome was planted too deep. Canna lily rhizomes should be planted no deeper than 2-3 inches (5-7 cm.) deep. Planting canna lily rhizomes too deep can cause the plants to be stunted or have delayed bloom time, or no blooms at all."

https://www.gardeningknowhow.com/ornamental/bulbs/canna/canna-lily-will-not-bloom.htm

These 3 are better forums to ask questions in:
https://davesgarden.com/community/forums/f/questions/all/

https://davesgarden.com/community/forums/f/b_gardentalk/all/

https://davesgarden.com/community/forums/f/plantid/all/

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