White spruce, picea glauca

i just bought 6 picea glauca quart size.6 bucks a piece what kind of soil do i use ,i used pure akadama1/16 to1/8th but died,do i use kanuma n pumice n volcanic and when can i repot to training pots ,there comi g from san antonio tx back to corpus christi tx. havent touch the roots or foliage.thanks.

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Now is not the time to repot, Spring is the right time when the buds are starting to push.
Watch this video for proper soil types and ratios-
https://live.bonsaimirai.com/library/video/soils

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