what could be the problem

Looks hungry but good. What are you feeding her?

Canna Bloom week 4

Doesn't anyone know

Looks hungry to me as well, my guess is more nitrogen at least, but it’s not bad so don’t go crazy. Without knowing anything else about the grow that’s about as good an answer you’re likely to get.

TThanks brother

She does look hungry. Yellowing from the bottom of the plant working its way up is usually a sign of low N.