Tree Planting 101: Part 8 – Mulching

Adding mulch around the base of the tree immediately after planting and replenishing during its early years will act as a weed barrier and also protect the tree from damage from a variety of stressors.  Mulching also helps control the temperature underneath the soil level, while simultaneously keeps the soil most, which is most important, because the new roots will need lots of water before they become established in the soil.  Ask an arborist about the best mulching techniques for newly planted trees.

Mulching tips and facts:

  • Mulch thickly over the roots to hold moisture in the soil.  Keep the mulch clear of the trunk to prevent rotting.
  • Mulching conserves moisture and protects tree in the winter
  • The mulch should be added in a thin layer closer to the trunk to avoid causing rot to the tree trunk
  • Mulch helps control the temperature underneath the soil level.  The tree will be stressed for awhile after losing some roots in the transplant process, so adding mulch helps keep the soil cool in the summertime and helps keep it a little bit warmer during the winter.
  • The mulch helps keep the soil moist, which is important, because the new roots will need lots of water before they become established.
  • Keep the mulch approximately 6 inches away from the base of the tree.  We don’t want to cover up the root collar.  Mulching right up to the root can cause decay around the tender roots located at the base of the tree.
  • Keep the fluffy mulch layer 2-4 inches thick
  • Use biodegradable hemp as an alternate