I'm guessing NEW England!
I see a couple issues:
Overwatering
Underfeeding

Time to re-pot into a larger pot with nice drain holes, and start your plant on a 1/4 strength complete Grow fert. If you're in the Northeast, you probably have a Liquid Sun location around you somewhere- they are the only East Coast Canna dealer and I am starting to feel like a Canna salesman lately since I am so completely in love with that stuff!

CONGRATULATIONS ON THE NEW HOUSE!!!!!!