Deer can wipe out a garden overnight, nibbling prize flowers, vegetables and plants. Telltale signs of deer feeding are torn or ragged leaf edges. Deer lack upper incisor teeth, so when they grab a plant, they jerk their heads up to pull a leaf free. This creates torn stems and leaves. Keep deer away from your yard with repellents (Plantskydd works well), an extra-tall fence (8 to 10 feet tall) or a double fence (3 to 5 feet tall, 3 to 4 feet apart). Toss plastic netting over individual plants or flowers you want to protect from browsing.