Just a visual of our seiryu which has been container grown its entire life. The old fall color from a gardening magazine ( when BC gardener magazine? came out and did a photo shoot). The tree was 16 years old back then in 1997. Back then I had potted it into a 2' x 2' x 2' cedar box. Fast forward to 2021 and now the tree just turned 40 yrs. old and it is now in an 18" x 18" x 16" deep cedar box. Scaled back in size quite a bit, trimmed the roots with my pruning saw in dormant period. Tree is thriving and have included this years spring and yesterdays epic fall showing! We have root pruned many large container specimens over the years for many clients and of course pretty much all of our mature specimens.