For those of us with arthritic joints, gardening can be a challenge; however, it can be made enjoyable. Gardening helps maintain joint flexibility and improves your quality of life. Here are some tips, techniques, and tools that can help keep an arthritic gardener active and happy in the garden. Work only during the time of day you feel your best. If you are stiff in the cool of the morning, conduct garden tasks during the warmer afternoons. Before starting, warm up your muscles and flex your joints with some gentle stretching exercises. Ask your doctor or physical therapist to recommend some warm-up and stretching exercises. I usually start each day with about 20 minutes of Tai Chi since it puts very little stress on my joints and increases my flexibility. Since I take arthritis medication, I usually protect my skin with sunscreen and wear a hat to make me less…