Grown in Ground
Bonsai Mirai Chat:
..from the podcast, and a question of mine contained in there:
seedlings spend 1-2 years in a 1 gallon root maker pot. Do root work after every stage.
Then they go in a 10" rootmaker bag in the ground. Fill bag about 1/2 way. Put a barrier (what do people think this barrier is? Tile? wood, etc? and over the whole circumference of the bag, or leaving some space around the sides?), a little layer of soil on that, manually spread roots on that. Use soil or a staples to position them. [then, I assume they fill the bag the rest of the remaining 1/3 up with soil, but they got sidetracked and didn’t finish this thought]
Soil for inside bag: nursery mix of 40% pumice, 40% composted bark mulch, 20% composted steer manure