So, for reference, what's for the remaining eighty percent? Weeds? Like dandelion, field madder, Creeping Jenny, clover, sowthistle (I know there's more, but those are generally the bulk of what I find growing in my yard)? Thanks so much.They’re all fine, plenty of calcium and decent fiber. These are all in the same plant family: brassicas. Maybe okay for 20–25% of a Russian diet, presuming the remaining 80% isn’t all romaine lettuce.
My Russian won’t eat collards or kale but she wasn’t brought up on them. It’s fine if your tortoise doesn’t like all four things.