Q.Can I separate canna lilies
They already have foliage and are about 2 ft tall. Can I separate the bulbs/plants now or will it harm them? The area I want to plant them in is narrow, so I wanted to line the bed with them -vs- keeping in clumps. Will it harm them now?
You most likely would interrupt the growth of the plant by moving them at this time.
If you really want them moved now you could try it but you may not have blooms to enjoy this year.
I would recommend waiting and making the change for next spring.
Here is a link about Canna Lily care.