PeeJay;1969066 said:
Adding soil around a long stem is common. People do it all the time. The plant survives. It doesn't do anything to make it grow faster though. It just stabilizes the stem and growing canopy so it doesn't flop over. When you do that it changes the dynamics of the root system. The roots are deeper. With time new roots will grow out of the buried stem. In the mean time you've upset things and caused some stress. If you transplant AND bury the stem at the same time then you are adding two stress factors. It's best to never have to add soil around the stem to keep the plant erect.
Well said PeeJay...although this method is very common...I am highly against it...there are better methods to support a stretching seedling and moving the light closer corrects the problem in short time
As an arborist I am called to diagnose plant and tree problems on a regular basis...the number 1 problem with plants in a new landscape is them being buried too deep. When the plant is buried too deep it is deprived of oxygen. The stress often leads to many disorders (insect infestation is very common, as well as girdling roots and stunted growth). Although the the plants we grow are able to handle the stress of planting too deep better than woody plants why would we put this unnecessary stress on our plants when there are other solutions and our main goal is to maximize the potential of a few plants. Just my humble opinion.
Seedlings look great PeeJay