Question about banana trees!: Help Me Please!!!

» crazzee_cat - Help Me Please!!!

I know this is kinda late to post here, but I thought that I would try anyway...
I live in British Columbia Canada, and I have 2 banana trees, they stand about 2 feet tall, and now have a third one growing, they are in a pot that is about 2 1/2 deep and 3 feet across...
Our summer so far has been very warm and humid so far...I'm writing this in late August because as of late they seem to bdyeingng...
They were doing very well, then the leaves at the top of the trees seem to be turning brown around the edges and some everywhere...They don't seem to open up to the sun anymore either...
The new baby plant seems to be doing ok though...
I do feed them every other week, and when the soil drys out I water them...
I have them in my backyard in a semi sunny location, so that they don't get 100% sunlight all day...
Should be bringing them in at night (being that it is a little chillier at night??? Why are they having such problems as of late??? Is it because of the new baby tree??? What is a good fertilizer for them???
Someone please help me??? I would appreciateperciate ANY input at all...=0)
Thank-you for taking the time to read this...=0)

-- posted by crazzee_cat