How to Landscape With Healthy Non-Poisonous Mulch

Clear the area to be mulched of all weeds and weed roots. Mulch can suppress weed seeds from germinating but cannot stop established weeds from growing. Rake the area smooth with a metal rake.

Spread a 3- to 4-inch thick layer of non-toxic organic mulch material around landscape trees and in shrub beds. Hold the mulch layer back from the base of the trunks at least 2 inches. Spread an even layer over the entire area of a shrub bed. Mulch landscape trees in a circle that extends out to the area under the tips of the branches. Use a wheelbarrow to transport mulch from the pile to the mulching site.

Rake the non-toxic mulch layer smooth after spreading it around.

Spread a 2- to 3-inch thick mulch later of leaf mold or pine needles in rhododendron and azalea beds. These acid-loving plants will benefit from the acid found in these mulch materials. Keep the mulch back about 2 inches from the base of the stems.

Lay black plastic down on pathways and patios where no plants are growing. Spread a 2- to 4-inch layer of non-toxic pea gravel over the area and rake it smooth. Use dark rocks to absorb warmth to an area or light-colored rocks to reflect warmth.

Spread a 2-inch layer of organic well-rotted compost over the soil in a vegetable garden bed. This non-toxic mulch will improve the nutrients in the soil, making for a healthy vegetable garden.

Spread a 2-inch layer of leaf mold, compost or seasoned manure over perennial flower and bulb beds in the fall to insulate the soil during the winter.