Help needed re leaning trees
I live in an exposed site in Highland Scotland which is exposed to fairly constant wind. We used to be protected by a shelter belt of trees which disrupted the airflow, but these were felled a few years ago. As the result, a number of young trees which we had planted in our garden have developed a distinct lean of about 15 degrees. They were originally planted with diagonal stakes and left for three or four years, but these were removed in the end due to bark damage. The trees developed a lean despite the staking as well. Since then we have tried single upright and multiple stakes, but have not been able to correct the lean or indeed prevent it from getting worse, and bark damage is a distinct problem because of movement caused by the wind strength. The trunks are no more than a couple of inches in diameter and they are maybe 8-10 feet high now. (This is with the exception of a larger willow about 4 inches wide and considerably taller). The soil is OK down for about a foot and is then clay, meaning that the top is less stable due to holding the water, and I am guessing the trees arent rooted that deeply. Most recently, they were staked upright using three stakes in a triangle pattern around them, webbing and a frame around the top, but after a couple of years when the stakes were weakened by rain and weather and needed removal, the lean had not been corrected at all. Any ideas whats the best way to get these trees straight again, and to keep them that way?