Good morning,
I have been growing this Picea Abies, pictured below, from sapling for about 2 years now. The plant still resides in its original peat pot and soil, but I worry about its slow growth progress over the last year and its leaf coloration now. I haven't had a stable place to put it outside, but I could supplement by leaving it on a window sill in an unheated vestibule with the window open (even through winter). I am considering repotting the plant this spring to a more stable pot that might lend itself to being outside. I've also read that Picea Abies responds best to a mix of 33-33-33 lava rock, akadama, and pumice.
Is repotting at this stage a good idea? Is switching the plant from organic to better draining soil a good idea?
I haven't been able to find many resources dealing with saplings at this stage so any help you could provide would be greatly appreciated! Please let me know your thoughts! Thank you!