Why are supermarket raspberries so expensive? Not because they're hard to grow — in fact, they're remarkably easy — but because they have such a short shelf life. That's why the best raspberries are the ones you grow in your own backyard and pick at the peak of ripeness. Our cedar Raspberry Bed is 8' L x 2' W x 7 1/4" H and holds five plants. It includes an integrated support system with heavy-gauge plastic monofilament line and special tensioners to keep rambling raspberry plants contained and upright.