Bark
Mulch
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Soil | Product Description - pdf
 Garden
Valley Bark Mulch is a fine screened Douglas Fir Bark Mulch
used as a decorative ground cover, natural weed barrier and
water conserving mulch.
As
a decorative ground cover we recommend 2 to 3 inches to adequately
cover the soil and smooth out any uneven areas. Our Bark Mulch
is a premium grade of screened mulch that gives your landscape
a beautiful finished appearance. On average, you will need to
mulch at least 1 to 2 inches per year to compensate for natural
decomposition and give your landscape a fresh new look. Additional
mulch may be needed to reduce erosion of soil.
As
a minimum to aid in weed control, and for proper insulation
of plant roots, we recommend that you apply 3 to 4 inches of
bark. It is best to spread bark in early spring or early fall
before heavy weed growth periods. Thereafter apply 1 to 2 inches
each year to maintain proper depth and fresh clean appearance.
If additional help is needed for better weed control, a poly
fabric weed barrier may be used underneath the mulch. We would
not normally recommend such products as visqueen for a weed
barrier as it doesn't allow moisture and air to pass through
to the plant's root system. At the customer's discretion, a
variety of pre-emergent granular herbicides may be used in conjunction
with the Bark Mulch for longer term weed suppression.
Use
of mulch around your plants is necessary for proper insulation
from the extremes of weather. Not only will the mulch reduce
the erosion of soil during heavy rain fall, but it acts as an
insulation blanket for the plant's roots, keeping the soil cool
in the summer and warmer in the winter. And because of the natural
fibrous nature of Bark Mulch it will retain moisture longer
for the plants during warm weather.
Contrary
to what some might think, Bark Mulch will not deplete nitrogen
in the soil when used as a topdress mulch around plants. You
will only need to compensate for nitrogen loss if the mulch
is incorporated into the soil as a soil amendment. But as always,
follow a regular fertilizing program for all your plants according
to their individual requirements.
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