i do Bonsai since 1990 , it is my friend and neighbor who began doing Bonsai so i tried too (it was the beginng of Bonsai in France when everybody thought it was easy and every Bonsai died, even the imported Bonsai in "pro" nursery because nobody knew how to grow them)
Here is a pic of my Bonsai (boxwood) in 1993 : i used to cultivate them in the shade in a barn = not good at all) so none of those trees survived ->
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I cultivate more correctly my trees since 5 years, thanks to forums advises, youtube videos and magasines. To cultivate correctly and to keep the tree alive/healthy is the main task of Bonsai for me !! I killed so many trees
Concerning the hanging right branch, your idea to make it root in the soil is interesting.. I'm sure this branch will fall down on the soil, and then bounce back to go up again (like the famous oak tree) but i dunno if it will root by itself or if i will make it root (but it is an interesting idea) ->
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