Inherited Alberta spruce

[brentwood]

Mother in law passed away last year, took her plants in.. started working on a largeish spruce she had, looks nicer than expected. Won't touch till spring, just wanted to share, get any input.. soil suggestion?
Thanks,
B

 

[Colorado]

My spruce mix is 3:1:1 akadama : pumice : lava.

 

[canoeguide]

I use equal parts lava, pumice, diatomaceous earth (Napa 8822), and fir bark. Works for me. I have 2 shitty Dwarf Alberta Spruce in that mix and they do fine.