Howdy all, I am new to the forum and to bananas. We got our start last year and got hooked. We don't know what our banana plants genealogy consists of but we do have two blooming and one those has bananas on it right now. We are in zone 7b, maybe new zone 8, hot and humid in summer but still get a freeze in winter. We took them into storage last winter and kept them alive until spring just to see if we could get any blooms!

We took quite a few pups off of each plant and have them growing wonderfully however, the new leaves come out really yellow and very huge. Are we doing something wrong or do we need to feed more often? We feed triple thirteen once a month, 'liquid feed' once a week and potash every week. They do turn green within a week, but the edges are curled and start fraying almost immediately.

Thanks for any advice you can give.

If it turns yellow then may be its a sign of either too much of nitrogen or lack of it. Get one of those banana fertilizers that has nitrogen and potassium in some kind of proportion and spray it around the tree on the soil and not directly in the tree. That should take care of it.

More nitrogen. Nanners need lots of potassium (K), but since you say you are adding potash, you should be OK.
Typically use a 2-1-3 ratio with nanners. With granular 6-3-12 you can add a closed handful per leaf per week during the hot months -- a couple of cups per week for an 8 foot tree. But build up to it slowly, watch for water stress,

Oh, yeah, if your soil is on the alkaline side you may need to add some iron. Too much phosphorus and alkaline soil can cause yellow leaves by making iron hard to absorb.

Are you adding minors with one of your ferts?