Just a poor analogy, Ric. Poncirus trifoliata is commonly used as a rootstock for citrus trees. It is sturdy, thorny and, as a fence, would be practically impenetrable. After about seven years of growth, it sets a seedy, inedible fruit that you would want to remove. The seeds, which should not be allowed to dry, may be immediately planted to acquire more seedlings, or they can be heavily sowed where you want more barrier fencing and just be allowed to grow there. To say that as a barrier it would be formidable would be an understatement.
