Today I had to deep edge a long line of boulevard trees and it occurred to me that we can create a lot of magic with just one tool.
The problem with the picture below is that there is no definition, no tree well to capture water and nutrients; and no way to keep machines from getting too close to the tree trunk.
So grab your spade and create a small tree well around your tree or planted bed. Make sure the spade hits the soil at 90 degrees. Remove all grass and weeds from the new tree well, including excess soil.
Never pile soil up high over the tree trunk. Reuse it elsewhere or put it in your green waste. Why? Because soil piled over the tree trunk like a pyramid will create a moist environment where it isn't supposed to be moist. Diseases can develop as the wood rots, animals move in, and adventitious roots can pop out from the covered trunk. As they grow and get thicker, they can girdle the tree and essentially choke it to death.
Use a spade in your garden to create some magic, like deep edges.
Vas Sladek, B.Sc., CLHT