rockm
Spuds Moyogi
By all trees, I assume you mean all Beech. Even then, the Japanese and European species are generally more resilient than American. They backbud more easily and can be forced to produce more than one flush of growth per year. Not so with Fagus Grandifolia...
Aggressive collection techniques work on alot of deciduous eastern US trees, Carolina horbeam can be dug in June, trunk chopped and root pruned 99 % and survive, same for Bald cypress. Cedar elm can be dug, trunk chopped root pruned severely, left out and shipped 1,000 miles via air freight and turn out ot be great bonsai (I've done all of this, sometimes repeatedly). Collection techniques vary tremendously species to species and location to location.
Aggressive collection techniques work on alot of deciduous eastern US trees, Carolina horbeam can be dug in June, trunk chopped and root pruned 99 % and survive, same for Bald cypress. Cedar elm can be dug, trunk chopped root pruned severely, left out and shipped 1,000 miles via air freight and turn out ot be great bonsai (I've done all of this, sometimes repeatedly). Collection techniques vary tremendously species to species and location to location.