Hi, I collected my first trees last March, so I am not exactly an expert but they were all deciduous. 2 Prunus Spinosa (Blackthorn), 2 silver birch and an oak. It took a very long, anxious time for new buds to appear. I think it was over a month but the weather wasn’t great and I didn’t have anyway great to keep them sheltered. Even then only one or two buds appeared on each tree and it was 2-3 months before they started pushing enough buds for me to be sure they had made it. The Prunus have done the best and have just had there first branch/shoot selection and styling.
I really enjoyed collecting them though and have already made my first visit to the woods this year to decide on my next lot to collect.
So my typical hunt i usually only need a few things… i have in my backpack, aside from provisions(food and water),
-Military folding trenching shovel: thing is a god sent
-long handled and short handled loppers. these make for easier root snippage
-any lkind of angled digging device like a pickaxe but must be com,pact and reasonable
to get underneath the roots and carve out a rootball
-something to carry the tree out safely:baby stroller, straps, whatever
-burlap, cheesecloth, etc, and rope to tie and package the rootball up for transport
rule of thumb for me is to eyeball the project out first. you willl discover a different shape almost always once you startdigging, but try and carve it out with your eyes so you dont over do it and end up with a tree too big to extract
I’ve used that technique about 10 years ago… I had great success on oak, beech and hawthorn. It is better to progressively wean the tree. Do not move it straight from black bag to outside, but go through a transparent bag that you progressively open more over the course of weeks (even inside a greenhouse). The callusing on pruning wounds is really impressive.