I planted my canna bulbs around May 20th and they haven't come up yet. It's been really rainy here. I planted my elephant ears at the same time but some of those are coming up. How long does it take for cannas?
Certified GKH Gardening Expert
Cannas like it warm, so I would give them a little longer just to see if perhaps the weather (or soil) is not warm enough yet. If, however, they do not begin sprouting within the next couple weeks, it is probably safe to say that they are goners, likely to rodents.