Hello all. I apologize if this has been asked or discussed before

. However I havent had any luck finding much infor on this... how do you all feed your lca during the winter. Where I live we get snow and all the leaved sie back except for cedar trees wich i can get my hands on occassionally... I have been told theyll take grapes bannana leaves orange peels and what not.. what else is sonthing you can get for a hungry growing colony that is readily available and also readily accepted?
Also. How do you all treat your leaves befor feeding them to your lca's assuming there not treated with pestacides? Do you wash them freeze them?
And lastly... is it possible to collect a bunch of leaves during the summer and put them into a deep freezer then offer them to the colonies over the winter as you need them? Or will the leaves not stay good long enough?
Thank you all very much for your suggestions and help it is much appreciated.