Like all urban trees, Somerville trees face a number of challenges such as inadequate water and nutrient availability, small growing spaces, compacted soils, poor soil quality, vandalism, and other harmful human influences.
You can help. Become a Tree Steward.
1. Water. Watering is the most important thing you can do, especially for young trees. The simple answer is this: Leaves fall off trees so that the trees can survive the winter. But the word “fall” is a bit misleading. It implies that the trees are passive this time of year, when, in fact, they are actively “pushing” the leaves off their branches.
The changes in weather and daylight trigger a hormone that releases a chemical message to each leaf that it is time to prepare for. Sep 01, There are three general reasons why trees lose their leaves early.
The canopy is crowded. Some trees may have grown more leaves than they can support, so they drop leaves to conserve water in hot, dry weather. th. It's a pest or disease. See what summer pest could be hurting your tree leaves. Sep 05, Leaves must fall.
Evergreens can hang on to their leaves through winter, because their foliage is coated in a wax that helps protect against cold, and their cells bear anti-freeze chemicals that ward off winter’s worst woes. Not so for broadleaf, or deciduous, trees.
The fluids that flow through their leaves are thin and susceptible to freezing, the tissues stumpcutting.buzzted Reading Time: 7 mins. May 09, The short answer is that leaves fall off trees when they aren’t doing their job any more. A leaf’s job is to turn sunlight into food for the tree. To do this, the leaf needs stumpcutting.buzz: Matilda Brown.