Few sharp cutting knives aside from Shalla that was not asked. From few months or year ago. Don’t recall Shalla.
They are all clean. Some are milchig, one pareve that may have been used for milk, I think I have fleishig ones aside too.
Can I kasher them all same way, same time?
I don’t have garden earth or real plants around.
You can kasher all of them together in any pot that you like. Since the silverware was not used in a while whatever comes out of them will not make the pot trief. Just make sure they are all clean, especially the knives between the blade and the handle, insert them into the pot while it is boiling, wait a few seconds for the pot to resume it’s boil. Then take them out and rinse in cold water.