Do Canna Bulbs Get Too Old?

Question

I have dug up and replanted my canna bulbs for at least 7 years Not flowering this year

Answer 1

The Cannas should not lose vigor due to age. Likely, a soil test will be necessary to see what needs to be added back. Testing pH can help rule out the possibility of a pH swing.

Here are some articles that will help:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

https://www.gardeningknowhow.com/ornamental/bulbs/canna/canna-lily-care.htm