 Roses are great landscape plants, but also among the best culinary and medicinal herbs in the world. Rose petals can be used in salads and rose hips in teas if the plants haven't been sprayed with synthetic poisons. They should only be grown organically. When roses are loaded with pesticides or other toxic chemicals, the natural benefit is squandered. For best results, buy and plant well adapted roses. Those on their own roots are usually the best choices.