Thanks, I'll try to rub between my fingers and see if it smells minty. I don't eat green thingsThis plant is not familiar to me but from the look of it, it could be. It's in the mint family; taste it and you should know if it's in the mint family or not! Everything in this plant family is safe to eat; whether your tortoise will eat it is another question. Like most herbs it has a strong scent that can discourage tortoises.
if it doesn't taste like mint then I'd wait for it to bloom and try again.