Deep Root Feeding

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Often the soil our trees are planted in is of poor quality. Deep Root Feeding (DRF) adds nutrients to the soil that the tree needs to be the healthiest tree possible. In natural forest environments, soil nutrients are constantly replenished by decaying organic matter from leaves and needles, but sometimes even they need a boost. In urban settings, we surround our trees with concrete or grass, which limit or compete for nutrients. By limiting and removing the organic matter, we are stopping nature’s natural supply of food to our trees.

Topical fertilizers you may apply don’t make it to the roots of the tree because they are absorbed by grass roots. Deep Root Feeding injects water and nutrients into the soil, directly into your tree’s root zone. The root zone is typically no deeper than 12 inches, and is where the tree absorbs most of the nutrients. To feed a tree, we place a specialized probe 8 to 12 inches into the soil and inject half a gallon of nutrients into the soil. We continue inserting the probe and injecting nutrients every two feet in a grid pattern around the drip line of the tree, offering the tree nutrients that it needs to grow.

TigerTree uses a high quality, slow-release formula that feeds your tree for an entire year. Our special tree formula contains nitrogen, phosphate, potash, copper, iron, manganese, and zinc. This formula releases a third of the nutrients in the first six weeks, encouraging tree growth and creating better foliage. The second one third is released between six weeks and three months, continuing to feed during the summer growing months. The last third is released after three months as the tree is building its root structure in the fall.


When Should I Feed My Trees?

Because we use a slow-release fertilizer blend, your trees will benefit from deep root feeding anytime during the year. Once DRF is completed, it does not activate until soil temperatures reach 50 to 55 degrees. When the soil temperature rises, the nutrients will activate and micro-organisms will break them down for the tree to use.

Which Trees Should I Feed?

TigerTree recommends Deep Root Feeding conifers and deciduous trees, along with larger bushes. Newly planted and smaller trees need to be fed yearly to establish their roots and achieve maximum growth. Larger mature trees that you don’t want to encourage to grow may only need to be fed every other year to become stronger and produce healthy green foliage.

What Are the Benefits of Feeding My Trees?

  • Healthier Trees: Healthier trees are more able to resist diseases and insects, and have increased winter hardiness. They achieve maximum growth and have greener foliage and a bushier appearance.
  • Increased Root Growth: Roots are very important to a tree. They transport water, oxygen and minerals from soil into the tree. A stronger root structure will result in healthier trees.
  • Soil Aeration: Soils are compacted during construction, but trees grow best in loose soil. DRF breaks up the soil creating an easier pathway for water and nutrients to get to the tree root zone.