Welcome to the Texas Board of Nursing Website. We welcome you to the Texas Board of Nursing (BON or Board) website. The BON has been serving the public for more than 100 years since its establishment in 1909 by the Legislature to regulate the safe practice of nursing in Texas.e welcome you to the Texas Board of Nursing (BON or Board) website. The BON has been serving the public for more than 100 years since its establishment in 1909 by the Legislature to regulate the safe practice of nursing in Texas.
Sugar maple, Norway maple and silver maple all have extremely shallow roots, especially silver maples, which often have large, exposed roots well above the ground level. This makes it difficult to nearly impossible for grass or other plants to live underneath a silver maple tree.
Different parts of the tree grow at different times of the year. A typical pattern is for most of the foliage growth to occur in the spring, followed by trunk growth in the summer and root growth in the fall and winter. Not all trees follow the same pattern. Most trees do not have a tap root. Tree roots do not grow very deep. Most tree roots are in the top 12 inches of soil. Tree roots often extend two to three times the width of the tree. Roots do not have green chlorophyll. Roots store more starch than the trunk. Roots do not have a central pith (soft central tissue) while the trunk does.