Although rhubarb is not a true fruit, in the kitchen it is usually prepared as if it were. Most commonly, rhubarb is cooked with sugar into crumble or pies or stewed and stored to top yoghurt or muesli. The green leaves are poisonous. Don't mess around with them, they cannot be eaten so you can discard!
Your rhubarb will be packed loose in your box of goodness. This is one way we work to be more sustainable and reduce our use of plastic.