My plan is to get them home and into large grow boxes with either the boon mix I currently use, or straight pumice. Not sure which to go with.
I've a question to put forth here JRDillWFM.
1st, I really like your 1st picture. Very nice opportunities, best wishes in your successes.
So you're waiting on a shipment of pumice. Me too, but reading the pH at
https://www.bonsaijack.com/shop/bon...ice/3-5-gallons-pumice-potting-soil-additive/
I'm also adding other components for other reasons but also to bring the pH down closer to Neutral of slightly acidic.
Some of my roses were growing in 4.5 pH in my landscape, checked with a cheap probe type pH checker, but acidic for sure.
So my question is geared more towards when you begin to work the roots of these collections later I guess.
It's hard telling what the Junipers current soil pH is, but are you aware of the higher pH using straight pumice?
I'm sure all batches vary, and origin would play into it some, but just some food for thought.
Again best of luck to you and your collections