yellowing of the new growth, are the fan leaves still green? it could be a simple nitrogen deficiency. Put earthworm castings in your soil. nitrogen rich bat guano works too. Both even better. scrap the house and garden. too much $$$. canna rocks, but light guano teas are great for small plants and recent transplants. but honestly you shouldnt need to be doing much feeding on a recent transplant so a well constructed soil is the best thing you can do for yourself.