Always test an inconspicuous spot first to make sure the color won't fade. Bleach may not be suitable for some fabrics. To maintain the gloss on nontextured surfaces, apply automotive wax. On textured finishes, periodically apply mineral or baby oil. If rust develops, clean area by sanding lightly, then wipe thoroughly and apply touch-up paint, usually provided by the manufacturer.
Some manufacturers recommend an occasional application of oil.
Teak and Jarrah can stay outdoors year-round. Pine, oak and cedar should be stored for winter. Painted woods require painting every year or so. Spray silicone on the joints of wire frames. Use wax or furniture polish on wooden umbrellas.