This info I got at the following website
http://www.diynetwork.com/diy/lv_household_tips/article/0...
Good Luck!
~L.
Cleaning Patio Furniture Cushions and Canvas
Materials for Cleaning Cushions:
Garden hose
1 tsp. dishwashing detergent
1 quart warm water
1 tsp. borax
Fabric protector spray (Scotch Guard was used on-air)
Pour the cleaning mixture into a spray bottle.
Saturate the cushions on both sides with the cleaning solution (figure A). Do not be frugal -- you want to get a lot of the solution on. This is what will clean off the mold and mildew. Be sure to get all the crevices and creases. The more you put on now, the less you will have to do when you spray it off.
Let the cleaning solution set for 15 minutes.
With the garden hose on high, spray the cushions thoroughly to knock the dirt and cleaning solution off the cushions.
Stand the cushions up on edge to let them dry. Let them dry to just damp.
Spray the cushions with a fabric protector. It will protect them and make them easier to clean in the future.
Materials for Cleaning Canvas:
Bar of Fels-Naptha soap
Scrub brush
With canvas, most of the time you can just machine wash it and put it back on the furniture damp and that will stretch the material back into shape.
If you can't remove the canvas, take your scrub brush and rub it across a bar of soap and then rub the brush back and forth on the canvas (figure B). You may have to do this a few times -- don't be afraid to really lather it up.
Once you get it nice and clean, take the hose or a spray bottle and rinse it off.
This soap works well for canvas awnings. It does a good job removing bird droppings and many stains.
Here's a couple more tips. I thought they were neat :)
Queen of Clean's Dirty Little Secrets:
Put a layer of gravel or marbles on soil of outdoor plants to keep rain from splashing dirt.
Put the legs of your picnic table in tin cans filled with water to keep ants from climbing up.