Below ground benefits of leaf compost
mulch.
Soil structure
air and water
Soil tilth or texture is determined by inorganic particle sizes that make up your soil.
Organic matter prevents clumping and creates pores that allow for the movement of air and water.
Soil organisms
Living organisms are present in healthy soil with plenty of organic matter. Organic
matter or humus is food for soil organisms from worms to protozoa. A multitude of hungry critters are
moving around in your soil looking for their next meal. During this process these organisms churn the
soil, break up soil particles and improve soil tilth.
Roots and symbiosis
The roots of some varieties of plants create symbiotic relationships with fungi. These
mycorrhizal fungi feed on the decaying organic matter in the soil and mineral nutrients left behind.
Nutrients
Leaf compost contains all the nutrients plants require except
nitrogen. Nutrients contained in leaf compost are converted to plant available nutrients by the organisms
responsible for organic decomposition.
Soil pH
Leaf compost mulch neutralizes soil pH levels. During the initial stages of compost decomposition, organic
acids are formed. The acidic conditions are favorable for growth of fungi and breakdown of lignin and
cellulose. As composting proceeds, the organic acids become neutralized. Mature leaf compost mulch has a pH
of around 6.5.