Homestead Tree Service


Fallen red gum tree

The roots of the above eucalyptus start to grow up the bank, then grow out & down the slope.
This is the way roots grow on steep slopes. This is why large trees on steep slopes fail.


Roots grow sideways and
then down banks.
They do not grow straight into the bank because of nutrional requirements (oxygen, water, etc.). They also do not grow very far up a bank. This is due to geotropism, which is the gravitational effect on growth regulators within the roots.That is why roots grow down.

Fallen pine on bank

The roots that “hold” a tree up grow in the opposite direction. Therefore, they actually “pull” a tree up.

With no roots going into the bank, but rather down, you see most tree failures, on steep banks, fall in the lower 180 degrees of the slope. So do not allow trees on slopes to get too big or better yet, plant trees that don't grow as large.

Check it out next storm!

Fallen pine on bank

An unhealthy root system increases tree stress
making the tree more susceptible to disease & insects.


Fallen on lawn


Organic mulch is possibly the best and least expensive soil enhancer around. This is the way nature does it, as a tree mulches its own root system, returning nutrients to the soil.

A mulch covering should be 2 to 4 inches deep and extend outside the dripline.

Decomposing mulch may be all the nutrients your tree will ever need.


Mycorrhizae are fungi that form a symbiotic relationship with the root system of a plant. Mycorrhizae:


Above, the hyphae or fungal strands of the mycorrhizae are growing out of the root. These strands absorb nutrients & water from the soil for the roots in exchange for carbohydrates from the roots.

Mycorrhizae are part of a healthy root system.

Pisolithus tinctorius

If you see this fungal growth in your yard, that's good. This is the reproductive body of the mycorrhizal fungus, deadman's foot, Pisolithus tinctorius.




  1. The top 8‑12 inches of soil should be kept evenly moist within and just outside the dripline.
  2. Water should be applied slowly (without run‑off) within and just outside the dripline.
  3. Established trees only need to be watered every two to four weeks depending on the species and assuming watering was done as noted above.

Extremely dry soil causes hair root & mycorrhizal death, reducing the
tree roots' ability to absorb water long after the soil is re‑moistened.


If you still have questions, please call us at 619‑443‑1775.
We want our clients to be educated about their trees.

Email us for San Diego tree service