Solid info. The ones I have are collected saplings that I wired early for trunk interest so I won’t really be sure of what I have for another season or three I guess.I like Rubrum alot!...
I am working my "selects" (from last years multitudes) from the ground up, with the intention of sales, as well... trying to flood the market with "Good" Rubrum specimens... because just like ANY seedlings... they won't ALL have tiny/interesting foliage and short internodes.... You have to do the selection work... THEN.. take cuttings off of "preferred stock" (in the future)
Oh I found it. I’m stuck home with the Covid so I’ve been reading(There's a Rubrum/platenoides thread in "TinyTree", as well. )