High nightime temperatures increase respiration rates, and wet clay soils do not provide for the oxygen level that their root systems demand. The end result is root death, and an undesirable or dead tree. When planting conifers in the south which are generally suited to northern climates, these conditions must be taken in to consideration. This rule of thumb generally applies to those areas of the south outside of the Appalachian Mountain region and below 2000 feet in elevation, minimum. In general, except for Momi Fir, the success of the majority of Fir in the southeast region is non existent.
Many conifers are slow growing, measured in just a few inches per year.
Patience is a necessity, but the rewards are great. Glauca' Blue Chinafir Cuppressus arizonica var. Pinus nigra var.