Just how much rhubarb can your family eat? You want to keep away from livestock as too much of the leaves or roots can cause damage to them.Jamsoundsgood said:Why in the world would you want to contain rhubarb?Mackay said:cut in half and sink each half in the ground 6 inches. fill with mulch and compost. Plant rhubarb, comfrey, or Jersulaem artichokes. It will keep it contained.