limelight tree form
I purchased a tiny limelight from Bluestone two summers ago and placed it in a pot. Last summer I noticed one strong upright stem and decided to experiment and try to train the hydrangea into a tree form. I cut all the branches off except for the main stem and staked it. During the winter I moved the pot into my garage where it's now starting to leaf out. The main stem is about four feet tall and standing straight. However,I noticed that at the bottom of the shrub, leaves are sprouting from the spots where I cut off the lower branches. Should I just keep cutting off those leaves or should I raise the dirt level in the pot (about six inches) in order to cover the bottom of the stem and perhaps prevent new branches from growing?