Collect organic garden scraps such as leaves, bark, twigs and grass clippings in a pile in an out-of-the-way part of the garden.
Feed the garden scraps through the chipper while wearing protective items such as goggles, a mask and gloves. Follow the instructions from the chipper manufacturer on safe-practice chipping.
Rake the chipped garden scraps into a pile. Allow the mulch to decompose for a week or two before applying it to the flowerbed, if desired, and cover the pile with a sheet of black plastic held down at the sides with bricks. Turn the mulch every second day to aerate it.
Fill a wheelbarrow with the mulch (either fresh or slightly decomposed) and wheel it to the flowerbeds. Spread a 2-inch-thick layer of mulch on the flowerbeds. The mulch will decompose further over time, adding nutrients to the soil. Reapply mulch as necessary.