This is a Ponderosa Pine I picked up from Andy Smith. This first image is how it was shown on his website.
The image was taken in September of 2016.
This second image is soon after I received the tree in April 2017.
I took the tree to a workshop with Bjorn Bjorholm in June 2017.
I started fertilizing heavy after the workshop.
You can see the results of that fertilization in the length of needles in the next two images.
I have continued to fertilize through the fall of 2017 and into the spring of 2018.
I will continue to fertilize for the rest of 2018 and 2019 and see where the tree is at. All of the fertilization has created long needles and lots more buds.
The long needles and the amount of them should shorten the next set of needles. In a couple years, I will cut back on the fertilizer to just the fall. That will help to reduce needle length as all.