

What a difference seven weeks can make! Updates regarding the Memorial Tree in Felton Covered Bridge Park are typically posted annually about the twelfth of July. Growth is obvious after a year. I did not expect it to be so obvious after less than two months between the twelfth of July and the thirtieth of August. I suppose that I should not be surprised. Even after most growth occurs through spring, some growth continues through late summer, and perhaps as late as the beginning of autumn, immediately prior to the slow initiation of dormancy for winter. Specimens of this species, valley oak, Quercus lobata, are innately vigorous and grow faster and more vertically while young. Growth decelerates and redirects itself laterally as trees mature and age. Otherwise, if they continued to grow as vigorously as they do while young, they would collapse from their own weight before they get to be as old as elderly trees get. Some live for more than six centuries, so their technique is obviously effective. Four nearby California black oaks, Quercus kelloggii, are not likely to get to be five centuries old, and are more likely to live for only one or two centuries. Unfortunately, two of them are not in comparably exemplary condition. One must be pruned for removal of major necrosis, and direction of new growth. Another requires major structure pruning. All four should be pruned for clearance above the surrounding parking lot. Perhaps I should be more concerned with these four California black oaks now that the Memorial Tree will need nothing for quite a while. Perhaps I should investigate the condition of the Monterey cypress Memorial Trees within the nearby Memorial Grove, which are growing well enough that surrounding box elders should be pruned away to relinquish more space for them.
