Tree Mulch

• Trees benefit from birch mulch. The mulch, applied outward from the tree trunk to the drip line, conserves water and gradually decomposes, slowly decaying over years into nutrients that feed the tree roots. Its slow decay is ideal for established trees that need root nutrition over several years. Apply the mulch near, but not touching, tree trunks. Spread it evenly around the tree. When piled against the tree trunk, the mulch traps moisture causing disease. Birch mulch acts as a protective cushion protecting trees and exposed roots from foot traffic, lawn mower and landscape equipment damage.
  
  

Perennial Mulch

• Perennial shrubs and flowers benefit from birch mulch as it moderates soil temperature. Acting as insulation barrier, the mulch protects soil and plant roots from climate extremes. The birch mulch is stable mulch, heavy enough to remain in place during rain and wind. This means the mulch does not easily wash away. It breaks up heavy rain and disperses the water droplets over the ground. Shredded birch mulch contains birch tree leaves, bark and wood. These components decay at different rates, adding continuing nutrients such as nitrogen and minerals to the soil.
  
  

Pathways

• Birch mulch nests well, unlike pine straw, and provides a tight layer suitable for walking. Lay down a layer of birch chip mulch between vegetable row crops. This displaces runoff water and reduces muddy pathways. It suppresses weed germination while separating vegetable sections. The mulch cushions falling fruit and vegetables, minimizing soil contact that splits or rots the produce. Mulch pathways ensure garden access both for vegetable and flower gardens. The birch mulch provides an aesthetic appeal to gardens, providing a visual background and contrast to the plants.
  
  

Considerations

• Birch and other wood mulches reduce water evaporation up to 50 percent. Because less water is needed, conventional irrigation sometimes over-waters and drowns mulched plants. Drip irrigation to mulched perennials allows lower water use and controlled water application. When heavy rainfall soaks the ground, birch mulch should be raked back so that excess water evaporates. Watch for rodent activity under the mulch. Thick birch mulch allows field mice and other pests to burrow unnoticed into gardens. Check the mulch periodically for tunnels or cavities indicating pest incursions.