I have around 10 JBP bareroot seedlings I purchased a year ago and 4 JRP seedlings I picked up this year.
Last year I potted the JBP seedlings in a mix of lava and pumice with a small amount of organic material (mostly compost) layered on top to help with some moisture retention. Most of my JBP have done pretty well the past year, but a couple have turned a bit yellow over the winter. My guess is that I improperly fertilized them at the end of last growing season, essentially a bit too late and growth did not harden off before winter.
You can see this JBP here:
Here is the other one with slightly yellow needles up top (sorry for the bad picture):
Any thoughts on my hypothesis?
For my newly acquired JRPs, when I received them I promptly potted the bareroot seedlings in the same mix as my JBP sans any organic material: only lava and pumice. I potted these in colanders and did some prelim wiring. As you can see below some of the needles have turned a bit brown and dry looking. Any thoughts on this? Is it simply under watering? Is the substrate not conducive for seedlings this young? Is it a no-no to repot and wire in the same season?
(By the way the needles on the above JRP look much more “firm” than what I was expecting, especially compared to the other JRPs I picked up).
I know the needles on JRP should be a bit more flimsy looking compared to JBPs, but these look a bit like they are struggling to me – this may just be my naivety with these pines.
I should also mention I live in Abq, NM where it is very dry and hot during the summer, but the pines did very well even in full sun (as expected).
As before, any help is much appreciated!